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.

A100216 Relates row sums of Pascal's triangle to expansion of cos(x)/exp(x).

Table of values

n a(n)
0 1
1 4
2 9
3 16
4 26
5 44
6 84
7 176
8 376
9 784
10 1584
11 3136
12 6176
13 12224
14 24384
15 48896
16 98176
17 196864
18 393984
19 787456
20 1573376
21 3144704
22 6288384
23 12578816
24 25163776
25 50335744
26 100675584
27 201342976
28 402661376
29 805289984
30 1610563584
31 3221159936

List of values

[1, 4, 9, 16, 26, 44, 84, 176, 376, 784, 1584, 3136, 6176, 12224, 24384, 48896, 98176, 196864, 393984, 787456, 1573376, 3144704, 6288384, 12578816, 25163776, 50335744, 100675584, 201342976, 402661376, 805289984, 1610563584, 3221159936]

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

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