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.

A131405 Row sums of triangle A131404.

Table of values

n a(n)
0 1
1 2
2 7
3 16
4 37
5 82
6 179
7 384
8 813
9 1702
10 3531
11 7272
12 14889
13 30342
14 61603
15 124700
16 251825
17 507582
18 1021535
19 2053388
20 4123481
21 8274002
22 16591767
23 33254356
24 66623317
25 133432082
26 267164239
27 534814024
28 1070413693
29 2142098602
30 4286254091
31 8575836312
32 17157057669

List of values

[1, 2, 7, 16, 37, 82, 179, 384, 813, 1702, 3531, 7272, 14889, 30342, 61603, 124700, 251825, 507582, 1021535, 2053388, 4123481, 8274002, 16591767, 33254356, 66623317, 133432082, 267164239, 534814024, 1070413693, 2142098602, 4286254091, 8575836312, 17157057669]

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

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