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A062815 a(n) = Sum_{i=1..n} i^(i+1). 3
1, 9, 90, 1114, 16739, 296675, 6061476, 140279204, 3627063605, 103627063605, 3242055440326, 110235260819398, 4047611646518687, 159615707204330911, 6728024062917221536, 301875929242270047392, 14364960381309995038401 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..385

MATHEMATICA

Accumulate[#^(#+1)&/@Range[17]]  (* Harvey P. Dale, Mar 18 2011 *)

PROG

(PARI) a(n) = sum(i=1, n, i^(i+1)); \\ Michel Marcus, Mar 26 2019

CROSSREFS

Cf. A226065, A226140.

Partial sums of A007778. - Michel Marcus, Mar 26 2019

Sequence in context: A049389 A127769 A276961 * A294610 A294813 A218118

Adjacent sequences:  A062812 A062813 A062814 * A062816 A062817 A062818

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard, Jun 23 2001

EXTENSIONS

Definition simplified by Jon E. Schoenfield, Nov 29 2008

STATUS

approved

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Last modified September 24 21:01 EDT 2020. Contains 337321 sequences. (Running on oeis4.)