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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.

A131678 a(n) = (Product_{i=1..8} n^i+i) / 8!.

Table of values

n a(n)
0 1
1 9
2 9065925
3 7310502643675
4 176327300873583405
5 483041091658815453456
6 320648364425775841520065
7 79074323113562613259765875
8 9403175220694650942397475625
9 639220975955961365494757841040
10 27923612862792073359883606310061
11 852385355738368243011331354210716
12 19346552845649626158477975728463925

List of values

[1, 9, 9065925, 7310502643675, 176327300873583405, 483041091658815453456, 320648364425775841520065, 79074323113562613259765875, 9403175220694650942397475625, 639220975955961365494757841040, 27923612862792073359883606310061, 852385355738368243011331354210716, 19346552845649626158477975728463925]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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