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.

A015513 a(1) = 1, a(n) = Sum_{k=1..n-1} ((11^k - 1)/10)*a(k).

Table of values

n a(n)
1 1
2 1
3 13
4 1742
5 2552030
6 41102995180
7 7281683317103260
8 14189947350338830620680
9 304174136317707285574697584520
10 71722670512982436329410134761448960400
11 186030135925835196854820049614502274473787544400

List of values

[1, 1, 13, 1742, 2552030, 41102995180, 7281683317103260, 14189947350338830620680, 304174136317707285574697584520, 71722670512982436329410134761448960400, 186030135925835196854820049614502274473787544400]