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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.

A285388 a(n) = numerator of ((1/n) * Sum_{k=0..n^2-1} binomial(2k,k)/4^k).

Table of values

n a(n)
1 1
2 35
3 36465
4 300540195
5 79006629023595
6 331884405207627584403
7 22292910726608249789889125025
8 11975573020964041433067793888190275875
9 411646257111422564507234009694940786177843149765
10 56592821660064550728377610673427602421565368547133335525825

List of values

[1, 35, 36465, 300540195, 79006629023595, 331884405207627584403, 22292910726608249789889125025, 11975573020964041433067793888190275875, 411646257111422564507234009694940786177843149765, 56592821660064550728377610673427602421565368547133335525825]

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

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