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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.

A141072 Sum of diagonal numbers in a Pascal-like triangle with index of asymmetry y = 3 and index of obliquity z = 0 (going upwards, left to right).

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 6
6 11
7 22
8 42
9 83
10 162
11 319
12 626
13 1231
14 2419
15 4756
16 9349
17 18380
18 36133
19 71036
20 139652
21 274549
22 539748
23 1061117
24 2086100
25 4101165
26 8062677
27 15850806
28 31161863
29 61262610
30 120439119
31 236777074
32 465491470
33 915132135
34 1799102406
35 3536942203
36 6953445286

List of values

[1, 1, 2, 3, 6, 11, 22, 42, 83, 162, 319, 626, 1231, 2419, 4756, 9349, 18380, 36133, 71036, 139652, 274549, 539748, 1061117, 2086100, 4101165, 8062677, 15850806, 31161863, 61262610, 120439119, 236777074, 465491470, 915132135, 1799102406, 3536942203, 6953445286]

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

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