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.

A015515 a(1) = 1, a(n) = Sum_{k=1..n-1} ((12^k - 1)/11)*a(k).

Table of values

n a(n)
1 1
2 1
3 14
4 2212
5 4171832
6 94375183504
7 25618521062894816
8 83450744014073963641408
9 3262026661649164626974053098368
10 1530121919008888925087797696409496422656
11 8612828743790947623482719127044813092555596516864

List of values

[1, 1, 14, 2212, 4171832, 94375183504, 25618521062894816, 83450744014073963641408, 3262026661649164626974053098368, 1530121919008888925087797696409496422656, 8612828743790947623482719127044813092555596516864]

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

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