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A006323 4-dimensional analogue of centered polygonal numbers. 0
1, 10, 41, 115, 260, 511, 910, 1506, 2355, 3520, 5071, 7085, 9646, 12845, 16780, 21556, 27285, 34086, 42085, 51415, 62216, 74635, 88826, 104950, 123175, 143676, 166635, 192241, 220690, 252185, 286936, 325160, 367081, 412930 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..34.

FORMULA

7*C(n + 2, 4) + C(n + 1, 2).

G.f.:(-1-x^2-5*x)/(x-1)^5 [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 10 2009]

CROSSREFS

Sequence in context: A016082 A003355 A022278 * A178073 A102784 A061003

Adjacent sequences:  A006320 A006321 A006322 * A006324 A006325 A006326

KEYWORD

nonn,easy

AUTHOR

Albert Rich (Albert_Rich(AT)msn.com)

STATUS

approved

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Last modified June 19 19:50 EDT 2013. Contains 226416 sequences.