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.

A295768 Triangular numbers that can be represented as a sum of two distinct triangular numbers, and as a product of two triangular numbers greater than 1.

Table of values

n a(n)
1 990
2 1540
3 2850
4 4851
5 8778
6 11781
7 15400
8 26796
9 43956
10 61425
11 61776
12 70125
13 105570
14 145530
15 176715
16 189420
17 270480
18 303810
19 349866
20 437580
21 526851
22 715806
23 719400
24 749700
25 799480
26 810901
27 828828
28 1037520
29 1050525
30 1185030
31 1493856
32 1788886
33 1921780
34 2001000

List of values

[990, 1540, 2850, 4851, 8778, 11781, 15400, 26796, 43956, 61425, 61776, 70125, 105570, 145530, 176715, 189420, 270480, 303810, 349866, 437580, 526851, 715806, 719400, 749700, 799480, 810901, 828828, 1037520, 1050525, 1185030, 1493856, 1788886, 1921780, 2001000]

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

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