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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.

A178190 Sum 7^((k^2+3k)/2) from k=1 to n.

Table of values

n a(n)
1 49
2 16856
3 40370463
4 678263443312
5 79792944561055313
6 65712442156478841194856
7 378818757978106938161558820799
8 15286701010761334171872123930835647200

List of values

[49, 16856, 40370463, 678263443312, 79792944561055313, 65712442156478841194856, 378818757978106938161558820799, 15286701010761334171872123930835647200]

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

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