A025223 [ Sum{(sqrt(j+1)-sqrt(i+1))^3} ], 1 <= i < j <= n.

0, 0, 0, 2, 5, 10, 18, 29, 44, 65, 92, 127, 169, 222, 285, 360, 449, 553, 673, 811, 968, 1146, 1346, 1570, 1821, 2099, 2406, 2744, 3116, 3522, 3965, 4447, 4970, 5535, 6146, 6803, 7510, 8268, 9079, 9946, 10871, 11857, 12905, 14017, 15198, 16447, 17769, 19166, 20640, 22193, 23829

Offset

1,4

Links

Table of n, a(n) for n=1..51.

Crossrefs

Sequence in context: A077631 A350878 A354246 * A348919 A177787 A104688

Adjacent sequences: A025220 A025221 A025222 * A025224 A025225 A025226

Keyword

nonn

Author

Clark Kimberling

Extensions

Corrected by Neven Juric (neven.juric(AT)apis-it.hr), May 04 2006

Status

approved