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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.

A260862 Base-12 representation of a(n) is the concatenation of the base-12 representations of 1, 2, ..., n, n-1, ..., 1.

Table of values

n a(n)
0 0
1 1
2 169
3 24649
4 3553225
5 511709641
6 73686731209
7 10610895808969
8 1527969074670025
9 220027547690625481
10 31683966878707771849
11 4562491230669011577289
12 7883984846509322664831433
13 163482309777203435651765004745
14 3389969175540090458609916107975113

List of values

[0, 1, 169, 24649, 3553225, 511709641, 73686731209, 10610895808969, 1527969074670025, 220027547690625481, 31683966878707771849, 4562491230669011577289, 7883984846509322664831433, 163482309777203435651765004745, 3389969175540090458609916107975113]

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

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