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A218089 a(n) = n*((n+1)^n - n^(n-1)). 1
1, 14, 165, 2244, 35755, 659238, 13856521, 327596552, 8612579511, 249374246010, 7887780406957, 270660921021516, 10015416945711619, 397588957529910734, 16855928678721845265, 760132325936960344080, 36333256253671504279279 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

FORMULA

a(n) = n*A178922(n).

MAPLE

A178922 := proc(n)

    (n+1)^n-n^(n-1) ;

end proc:

A218089 := proc(n)

    n*A178922(n) ;

end proc: # R. J. Mathar, Oct 21 2012

MATHEMATICA

a[n_] := n*((n + 1)^n - n^(n - 1))

Table[n*((n + 1)^n - n^(n - 1)), {n, 100}]

PROG

(Maxima) A218089[n]:=n*((n+1)^n-n^(n-1))$ makelist(A218089[n], n, 1, 30); /* Martin Ettl, Oct 29 2012 */

CROSSREFS

Sequence in context: A016146 A269539 A228422 * A273587 A125449 A159738

Adjacent sequences:  A218086 A218087 A218088 * A218090 A218091 A218092

KEYWORD

nonn,easy

AUTHOR

Brian J. Tyrrell, Oct 20 2012

STATUS

approved

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Last modified June 22 04:06 EDT 2021. Contains 345367 sequences. (Running on oeis4.)