The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

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