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.

A265136 Numbers that are the sum of two distinct nonzero triangular numbers in exactly three ways.

Table of values

n a(n)
1 81
2 106
3 181
4 211
5 256
6 276
7 331
8 361
9 381
10 406
11 456
12 556
13 606
14 631
15 666
16 681
17 706
18 718
19 731
20 781
21 856
22 861
23 931
24 939
25 956
26 981
27 1051
28 1131
29 1206
30 1231
31 1456
32 1506
33 1563
34 1606
35 1631
36 1681
37 1731
38 1732
39 1756
40 1831
41 1891
42 1901
43 1956
44 1981
45 2081
46 2095
47 2101

List of values

[81, 106, 181, 211, 256, 276, 331, 361, 381, 406, 456, 556, 606, 631, 666, 681, 706, 718, 731, 781, 856, 861, 931, 939, 956, 981, 1051, 1131, 1206, 1231, 1456, 1506, 1563, 1606, 1631, 1681, 1731, 1732, 1756, 1831, 1891, 1901, 1956, 1981, 2081, 2095, 2101]

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

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