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.

A298689 G.f. A(x) satisfies: A(x) = Sum_{n>=0} binomial( n^2, n) * x^n / A(x)^( n^2 ).

Table of values

n a(n)
0 1
1 1
2 5
3 56
4 957
5 22312
6 666666
7 24367474
8 1051351629
9 52144520972
10 2915915251326
11 181227240764128
12 12382862552065170
13 922234506009645794
14 74345308066436693828
15 6449466281781165675666
16 599083515375854753327365
17 59328642583049975996828036
18 6240245388930730524658068558
19 694754212357547941002786433000
20 81628078642468462576697539116234

List of values

[1, 1, 5, 56, 957, 22312, 666666, 24367474, 1051351629, 52144520972, 2915915251326, 181227240764128, 12382862552065170, 922234506009645794, 74345308066436693828, 6449466281781165675666, 599083515375854753327365, 59328642583049975996828036, 6240245388930730524658068558, 694754212357547941002786433000, 81628078642468462576697539116234]

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

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