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.

A247305 The smaller of two consecutive triangular numbers which are permutations of each other.

Table of values

n a(n)
1 404550
2 2653056
3 3643650
4 5633046
5 6413571
6 10122750
7 10656036
8 13762881
9 19841850
10 26634051
11 32800950
12 47848653
13 56769840
14 71634465
15 89184690
16 103672800
17 137108520
18 317053971
19 345069585
20 392714325
21 408508236
22 440762895
23 508948560
24 598735710
25 718830486
26 825215625

List of values

[404550, 2653056, 3643650, 5633046, 6413571, 10122750, 10656036, 13762881, 19841850, 26634051, 32800950, 47848653, 56769840, 71634465, 89184690, 103672800, 137108520, 317053971, 345069585, 392714325, 408508236, 440762895, 508948560, 598735710, 718830486, 825215625]