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.

A159920 Sums of the antidiagonals of Sundaram's sieve (A159919).

Table of values

n a(n)
2 4
3 14
4 32
5 60
6 100
7 154
8 224
9 312
10 420
11 550
12 704
13 884
14 1092
15 1330
16 1600
17 1904
18 2244
19 2622
20 3040
21 3500
22 4004
23 4554
24 5152
25 5800
26 6500
27 7254
28 8064
29 8932
30 9860
31 10850
32 11904
33 13024
34 14212
35 15470
36 16800
37 18204
38 19684
39 21242
40 22880
41 24600
42 26404

List of values

[4, 14, 32, 60, 100, 154, 224, 312, 420, 550, 704, 884, 1092, 1330, 1600, 1904, 2244, 2622, 3040, 3500, 4004, 4554, 5152, 5800, 6500, 7254, 8064, 8932, 9860, 10850, 11904, 13024, 14212, 15470, 16800, 18204, 19684, 21242, 22880, 24600, 26404]

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

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