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.

A253680 Numbers c(n) whose square are equal to the sum of an odd number M of consecutive cubed integers b^3 + (b+1)^3 + ... + (b+M-1)^3 = c(n)^2, starting at b(n) (A253679).

Table of values

n a(n)
1 204
2 2940
3 16296
4 57960
5 159060
6 368004
7 754320
8 1412496
9 2465820
10 4070220
11 6418104
12 9742200
13 14319396
14 20474580
15 28584480
16 39081504
17 52457580
18 69267996
19 90135240
20 115752840
21 146889204
22 184391460
23 229189296
24 282298800
25 344826300
26 417972204
27 503034840

List of values

[204, 2940, 16296, 57960, 159060, 368004, 754320, 1412496, 2465820, 4070220, 6418104, 9742200, 14319396, 20474580, 28584480, 39081504, 52457580, 69267996, 90135240, 115752840, 146889204, 184391460, 229189296, 282298800, 344826300, 417972204, 503034840]