A345360 a(n) = n^n*n - n.

0, 0, 6, 78, 1020, 15620, 279930, 5764794, 134217720, 3486784392, 99999999990, 3138428376710, 106993205379060, 3937376385699276, 155568095557812210, 6568408355712890610, 295147905179352825840, 14063084452067724990992, 708235345355337676357614, 37589973457545958193355582

Offset

0,3

Links

Table of n, a(n) for n=0..19.

Braingle, Impossible Series

Formula

a(n) = n^(n+1) - n.

a(n) = A007778(n) - n.

E.g.f.: -LambertW(-x)/(1+LambertW(-x))^3-x*exp(x). - Alois P. Heinz, Jul 12 2021

a(n) = n*A048861(n). - Kevin Ryde, Jul 12 2021

Crossrefs

Cf. A007778, A048861.

Sequence in context: A074112 A372181 A197103 * A208473 A358956 A268555

Adjacent sequences: A345357 A345358 A345359 * A345361 A345362 A345363

Keyword

nonn,easy

Author

Matt Donahoe, Jun 28 2021

Status

approved