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.

A100514 Numerator of Sum_{k=0..n} 1/C(3*n, 3*k).

Table of values

n a(n)
0 1
1 2
2 41
3 85
4 9287
5 10034
6 4089347
7 3529889
8 119042647
9 191288533
10 1553111566613
11 471993968921
12 48141284433673
13 287285900609
14 24342145990117741
15 68262703949495173
16 490305954062679017
17 2207402771385797549
18 995490830339080453219
19 188798823808438240073

List of values

[1, 2, 41, 85, 9287, 10034, 4089347, 3529889, 119042647, 191288533, 1553111566613, 471993968921, 48141284433673, 287285900609, 24342145990117741, 68262703949495173, 490305954062679017, 2207402771385797549, 995490830339080453219, 188798823808438240073]

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

Content is available under The OEIS End-User License Agreement.