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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.

A251671 a(n) = Sum_{k=0..n} C(n,k) * (2^k + 3^k)^k.

Table of values

n a(n)
0 1
1 6
2 180
3 43398
4 88701816
5 1573206748746
6 248688444559874580
7 356335498302585834118638
8 4663871943514788530035646937456
9 558720685051192771669885091319459750546
10 612058892657175926094223171960469926874935754700

List of values

[1, 6, 180, 43398, 88701816, 1573206748746, 248688444559874580, 356335498302585834118638, 4663871943514788530035646937456, 558720685051192771669885091319459750546, 612058892657175926094223171960469926874935754700]

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

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