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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.

A292761 Expansion of e.g.f. (tan x + sec x)^2*(E.g.f. for A000738).

Table of values

n a(n)
0 0
1 1
2 7
3 38
4 201
5 1115
6 6626
7 42517
8 295107
9 2211892
10 17849935
11 154550441
12 1430572848
13 14107448549
14 147729473099
15 1637748919090
16 19167768256629
17 236221157717491
18 3058140944567938
19 41499024082744529
20 589093653165279255
21 8731488105231566648
22 134896745065585496747

List of values

[0, 1, 7, 38, 201, 1115, 6626, 42517, 295107, 2211892, 17849935, 154550441, 1430572848, 14107448549, 147729473099, 1637748919090, 19167768256629, 236221157717491, 3058140944567938, 41499024082744529, 589093653165279255, 8731488105231566648, 134896745065585496747]

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

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