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- Pentagonal_pyramidal_number abstract "A pentagonal pyramidal number is a figurate number that represents the number of objects in a pyramid with a pentagonal base. The nth pentagonal pyramidal number is equal to the sum of the first n pentagonal numbers.The first few pentagonal pyramidal numbers are:1, 6, 18, 40, 75, 126, 196, 288, 405, 550, 726, 936, 1183, 1470, 1800, 2176, 2601, 3078, 3610, 4200, 4851, 5566, 6348, 7200, 8125, 9126 (sequence A002411 in OEIS).The formula for the nth pentagonal pyramidal number isso the nth pentagonal pyramidal number is the average of n2 and n3. The nth pentagonal pyramidal number is also n times the nth triangular number.The generating function for the pentagonal pyramidal numbers is".
- Pentagonal_pyramidal_number wikiPageID "542355".
- Pentagonal_pyramidal_number wikiPageRevisionID "557572122".
- Pentagonal_pyramidal_number hasPhotoCollection Pentagonal_pyramidal_number.
- Pentagonal_pyramidal_number subject Category:Figurate_numbers.
- Pentagonal_pyramidal_number type Abstraction100002137.
- Pentagonal_pyramidal_number type Amount105107765.
- Pentagonal_pyramidal_number type Attribute100024264.
- Pentagonal_pyramidal_number type FigurateNumbers.
- Pentagonal_pyramidal_number type Magnitude105090441.
- Pentagonal_pyramidal_number type Number105121418.
- Pentagonal_pyramidal_number type Property104916342.
- Pentagonal_pyramidal_number comment "A pentagonal pyramidal number is a figurate number that represents the number of objects in a pyramid with a pentagonal base.".
- Pentagonal_pyramidal_number label "Nombre pyramidal pentagonal".
- Pentagonal_pyramidal_number label "Numero piramidale pentagonale".
- Pentagonal_pyramidal_number label "Pentagonal pyramidal number".
- Pentagonal_pyramidal_number label "五角錐数".
- Pentagonal_pyramidal_number label "五角錐數".
- Pentagonal_pyramidal_number sameAs Nombre_pyramidal_pentagonal.
- Pentagonal_pyramidal_number sameAs Numero_piramidale_pentagonale.
- Pentagonal_pyramidal_number sameAs 五角錐数.
- Pentagonal_pyramidal_number sameAs 오각뿔수.
- Pentagonal_pyramidal_number sameAs m.02n9nd.
- Pentagonal_pyramidal_number sameAs Q2708903.
- Pentagonal_pyramidal_number sameAs Q2708903.
- Pentagonal_pyramidal_number sameAs Pentagonal_pyramidal_number.
- Pentagonal_pyramidal_number wasDerivedFrom Pentagonal_pyramidal_number?oldid=557572122.
- Pentagonal_pyramidal_number isPrimaryTopicOf Pentagonal_pyramidal_number.