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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.

A127740 Natural number transform of Aitken's triangle.

Table of values

n a(n)
0 1
1 2
2 4
3 6
4 9
5 15
6 20
7 28
8 40
9 60
10 75
11 100
12 135
13 185
14 260
15 312
16 402
17 522
18 684
19 906
20 1218
21 1421
22 1785
23 2254
24 2863
25 3661
26 4718
27 6139
28 7016
29 8640
30 10680
31 13256
32 16528
33 20712
34 26104
35 33120
36 37260
37 45153
38 54873
39 66888
40 81801
41 100395
42 123696
43 153063
44 190323

List of values

[1, 2, 4, 6, 9, 15, 20, 28, 40, 60, 75, 100, 135, 185, 260, 312, 402, 522, 684, 906, 1218, 1421, 1785, 2254, 2863, 3661, 4718, 6139, 7016, 8640, 10680, 13256, 16528, 20712, 26104, 33120, 37260, 45153, 54873, 66888, 81801, 100395, 123696, 153063, 190323]

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

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