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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.

A168591 a(n) = sum of the n-th power of the trinomial coefficients in row n of triangle A027907.

Table of values

n a(n)
0 1
1 3
2 19
3 831
4 281907
5 764206503
6 16955359883149
7 3120135986465328015
8 4819828380706011142058787
9 63004580363300194268932114354503
10 7017256966823394610075464951176481843849

List of values

[1, 3, 19, 831, 281907, 764206503, 16955359883149, 3120135986465328015, 4819828380706011142058787, 63004580363300194268932114354503, 7017256966823394610075464951176481843849]

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

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