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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.

A077595 Numerator of integral from 0 to 1 of (1 + x^2)^n, in lowest terms.

Table of values

n a(n)
0 1
1 4
2 28
3 96
4 1328
5 4672
6 33472
7 121856
8 3597056
9 13417472
10 33655808
11 127508480
12 5829259264
13 22308732928
14 171393728512
15 660468137984
16 40831182635008
17 22589996269568
18 175323994652672
19 681560447647744
20 10614717931323392
21 289707123275726848
22 2261982330593738752

List of values

[1, 4, 28, 96, 1328, 4672, 33472, 121856, 3597056, 13417472, 33655808, 127508480, 5829259264, 22308732928, 171393728512, 660468137984, 40831182635008, 22589996269568, 175323994652672, 681560447647744, 10614717931323392, 289707123275726848, 2261982330593738752]

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

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