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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.

A002305 Denominators of coefficients in asymptotic expansion of (2/Pi)*Integral_{0..oo} (sin x / x)^n dx.

Table of values

n a(n)
0 1
1 20
2 1120
3 3200
4 3942400
5 66560000
6 10035200000
7 136478720000
8 268461670400000
9 56518246400000
10 23658537943040000000
11 51431604224000000
12 70718455808000000
13 102541760921600000
14 23292891381760000000
15 8879987916800000
16 144993552704000000
17 1072952290009600000

List of values

[1, 20, 1120, 3200, 3942400, 66560000, 10035200000, 136478720000, 268461670400000, 56518246400000, 23658537943040000000, 51431604224000000, 70718455808000000, 102541760921600000, 23292891381760000000, 8879987916800000, 144993552704000000, 1072952290009600000]

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

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