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.

A253822 Indices of centered triangular numbers (A005448) which are also octagonal numbers (A000567).

Table of values

n a(n)
1 1
2 256
3 833
4 294848
5 960705
6 340253760
7 1108652161
8 392652543616
9 1279383632513
10 453120695078528
11 1476407603267265
12 522900889468077120
13 1703773094786790721
14 603427173325465917376
15 1966152674976353224193
16 696354435116698200574208
17 2268938483149616833927425

List of values

[1, 256, 833, 294848, 960705, 340253760, 1108652161, 392652543616, 1279383632513, 453120695078528, 1476407603267265, 522900889468077120, 1703773094786790721, 603427173325465917376, 1966152674976353224193, 696354435116698200574208, 2268938483149616833927425]

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

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