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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.

A178189 Numerators of sum (1/5)^((k^2+3k)/2) from k=1 to n.

Table of values

n a(n)
1 1
2 126
3 78751
4 246096876
5 3845263687501
6 300411225586015626
7 117348134994537353906251
8 229195576161205769348146484376
9 2238238048449275091290493011484375001

List of values

[1, 126, 78751, 246096876, 3845263687501, 300411225586015626, 117348134994537353906251, 229195576161205769348146484376, 2238238048449275091290493011484375001]

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

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