A145328 Partial sums of A007925, starting at n=1.

-1, -2, 15, 414, 8263, 170550, 3838199, 95009206, 2581793607, 76644369006, 2472064375039, 86167184631630, 3229828797076775, 129604998329498374, 5545091849435542023, 252031805153121499398, 12129204697482149958439

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Mathematica

lst={}; s=0; Do[s+=n^(n+1)-(n+1)^n; AppendTo[lst, s], {n, 5!}]; lst
Accumulate[Table[n^(n+1)-(n+1)^n, {n, 20}]] (* Harvey P. Dale, Aug 26 2012 *)

Crossrefs

Sequence in context: A272899 A060381 A256369 * A139810 A012943 A363834

Adjacent sequences: A145325 A145326 A145327 * A145329 A145330 A145331

Keyword

sign

Author

Vladimir Joseph Stephan Orlovsky, Oct 08 2008

Extensions

Edited by N. J. A. Sloane, Oct 09 2008

Status

approved