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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.

A081560 Binomial transform of expansion of exp(cosh(2*x)).

Table of values

n a(n)
0 1
1 1
2 5
3 13
4 89
5 361
6 3005
7 16213
8 157169
9 1048081
10 11509685
11 90793693
12 1108802249
13 10054120441
14 134712712685
15 1375818738853
16 20017552431329
17 226802388529441
18 3554162892847205
19 44153857947768493
20 740316072791255609

List of values

[1, 1, 5, 13, 89, 361, 3005, 16213, 157169, 1048081, 11509685, 90793693, 1108802249, 10054120441, 134712712685, 1375818738853, 20017552431329, 226802388529441, 3554162892847205, 44153857947768493, 740316072791255609]

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

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