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.

A111908 Numbers that are not the sum of a prime and a nonzero triangular number.

Table of values

n a(n)
1 1
2 2
3 7
4 36
5 61
6 105
7 171
8 210
9 211
10 216
11 325
12 351
13 406
14 528
15 561
16 630
17 741
18 780
19 990
20 1081
21 1176
22 1275
23 1596
24 1711
25 1830
26 1953
27 2016
28 2145
29 2346
30 2628
31 2775
32 3003
33 3081
34 3240
35 3321
36 3655
37 3741
38 3916
39 4278
40 4371
41 4465
42 4560
43 4851
44 5253
45 5460
46 5565
47 5886

List of values

[1, 2, 7, 36, 61, 105, 171, 210, 211, 216, 325, 351, 406, 528, 561, 630, 741, 780, 990, 1081, 1176, 1275, 1596, 1711, 1830, 1953, 2016, 2145, 2346, 2628, 2775, 3003, 3081, 3240, 3321, 3655, 3741, 3916, 4278, 4371, 4465, 4560, 4851, 5253, 5460, 5565, 5886]

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

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