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.

A302657 a(n) = [x^n] 1 + x*(1 + 2*x*(1 + 3*x*(1 + 4*x*(1 + 5*x*(1 + ...)^n)^n)^n)^n)^n.

Table of values

n a(n)
0 1
1 1
2 4
3 66
4 2576
5 181580
6 20040132
7 3176873014
8 683004260416
9 191131280146584
10 67496202291859460
11 29358012892996082966
12 15422766301341408798384
13 9628365732822661693594804
14 7046590639669984518105404260
15 5975695685335003337179698967230
16 5813189543201787075970895280603392

List of values

[1, 1, 4, 66, 2576, 181580, 20040132, 3176873014, 683004260416, 191131280146584, 67496202291859460, 29358012892996082966, 15422766301341408798384, 9628365732822661693594804, 7046590639669984518105404260, 5975695685335003337179698967230, 5813189543201787075970895280603392]