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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.

A219795 Sum of the absolute values of the antidiagonals of the triangle A135929(n) companion. See the comment.

Table of values

n a(n)
0 2
1 2
2 2
3 2
4 3
5 3
6 5
7 7
8 10
9 11
10 16
11 23
12 33
13 44
14 58
15 81
16 114
17 158
18 212
19 293
20 407
21 565
22 777
23 1064
24 1471
25 2036
26 2813
27 3863
28 5334
29 7370
30 10183
31 14046
32 19356
33 26726
34 36909
35 50955
36 70251
37 96977
38 133886
39 184841
40 255092

List of values

[2, 2, 2, 2, 3, 3, 5, 7, 10, 11, 16, 23, 33, 44, 58, 81, 114, 158, 212, 293, 407, 565, 777, 1064, 1471, 2036, 2813, 3863, 5334, 7370, 10183, 14046, 19356, 26726, 36909, 50955, 70251, 96977, 133886, 184841, 255092]

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

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