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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.

A386897 a(n) = 4^n * binomial(5*n/2,n).

Table of values

n a(n)
0 1
1 10
2 160
3 2860
4 53760
5 1040060
6 20500480
7 409404600
8 8255569920
9 167718033340
10 3427543285760
11 70384350760360
12 1451115518361600
13 30018413447053080
14 622759359440486400
15 12951795276279787760
16 269947721071617638400
17 5637113741080428839100

List of values

[1, 10, 160, 2860, 53760, 1040060, 20500480, 409404600, 8255569920, 167718033340, 3427543285760, 70384350760360, 1451115518361600, 30018413447053080, 622759359440486400, 12951795276279787760, 269947721071617638400, 5637113741080428839100]

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

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