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.

A111686 (n+1) + (n+1)(n+2) + ..., with n terms.

Table of values

n a(n)
1 2
2 15
3 144
4 1925
5 33648
6 726327
7 18636560
8 553680369
9 18684924840
10 705833193923
11 29502690532392
12 1351724235304365
13 67359683340291104
14 3627011494019437935
15 209846445862386234528
16 12982402818188717219657
17 855210841645834409812920

List of values

[2, 15, 144, 1925, 33648, 726327, 18636560, 553680369, 18684924840, 705833193923, 29502690532392, 1351724235304365, 67359683340291104, 3627011494019437935, 209846445862386234528, 12982402818188717219657, 855210841645834409812920]