cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A302989 a(n) = n^n + n*n + n.

Original entry on oeis.org

1, 3, 10, 39, 276, 3155, 46698, 823599, 16777288, 387420579, 10000000110, 285311670743, 8916100448412, 302875106592435, 11112006825558226, 437893890380859615, 18446744073709551888, 827240261886336764483, 39346408075296537575766, 1978419655660313589124359
Offset: 0

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Author

Alex Ratushnyak, Apr 17 2018

Keywords

Examples

			a(3) = 3^3 + 3*3 + 3 = 27 + 9 + 3 = 39.
		

Crossrefs

Programs

Formula

a(n) = A066141(n) * n + A000007(n).
From Alois P. Heinz, May 28 2018: (Start)
E.g.f.: 1/(1+LambertW(-x)) + exp(x)*(2*x+x^2).
a(n) = A001477(n) + A000290(n) + A000312(n). (End)

Extensions

a(0)=1 prepended by Alois P. Heinz, May 28 2018
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