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 A079414 a(n) = 4n^4 - 3n^2. 1
 1, 52, 297, 976, 2425, 5076, 9457, 16192, 26001, 39700, 58201, 82512, 113737, 153076, 201825, 261376, 333217, 418932, 520201, 638800, 776601, 935572, 1117777, 1325376, 1560625, 1825876, 2123577, 2456272, 2826601, 3237300 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n) = n * sum_{k=0 to n-1} (-1)^k (2n-2k-1)^3 a(n+1) = (n+1) * ((2n+1)^3 - a(n)/n) LINKS CROSSREFS Sequence in context: A230533 A235654 A118328 * A270769 A281396 A232903 Adjacent sequences:  A079411 A079412 A079413 * A079415 A079416 A079417 KEYWORD nonn,changed AUTHOR Kit Vongmahadlek (kit119(AT)yahoo.com), Jan 07 2003 EXTENSIONS Edited by Don Reble, Nov 02 2005 STATUS approved

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