cp's OEIS Frontend

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.

A081562 Binomial transform of expansion of exp(2cosh(x)), A000807.

Table of values

n a(n)
0 1
1 1
2 3
3 7
4 27
5 91
6 423
7 1807
8 9747
9 49651
10 303183
11 1777447
12 12072987
13 79587691
14 593485623
15 4327497727
16 35069154147
17 279393234211
18 2440577314143
19 21043100301847
20 196825339400427
21 1822706292362011
22 18153886768953543

List of values

[1, 1, 3, 7, 27, 91, 423, 1807, 9747, 49651, 303183, 1777447, 12072987, 79587691, 593485623, 4327497727, 35069154147, 279393234211, 2440577314143, 21043100301847, 196825339400427, 1822706292362011, 18153886768953543]

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

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