A302989 a(n) = n^n + n*n + n.
1, 3, 10, 39, 276, 3155, 46698, 823599, 16777288, 387420579, 10000000110, 285311670743, 8916100448412, 302875106592435, 11112006825558226, 437893890380859615, 18446744073709551888, 827240261886336764483, 39346408075296537575766, 1978419655660313589124359
Offset: 0
Examples
a(3) = 3^3 + 3*3 + 3 = 27 + 9 + 3 = 39.
Links
- Alois P. Heinz, Table of n, a(n) for n = 0..386 (terms n=1..100 from Muniru A Asiru)
Programs
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GAP
List([1..30],n->n^n+n*n+n); # Muniru A Asiru, May 27 2018
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Maple
seq(n^n+n*n+n,n=0..30); # Muniru A Asiru, May 27 2018
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Mathematica
Join[{1},Table[n^n+n^2+n,{n,20}]] (* Harvey P. Dale, Jun 13 2020 *)
Formula
Extensions
a(0)=1 prepended by Alois P. Heinz, May 28 2018