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.

A206179 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n,k)^3 * 3^k ).

Table of values

n a(n)
0 1
1 4
2 25
3 196
4 1747
5 16996
6 175936
7 1907224
8 21423385
9 247515796
10 2925668236
11 35239199704
12 431207470105
13 5347823877172
14 67093724913313
15 850241358959044
16 10869754843088962
17 140045452765874704
18 1816842996684686656
19 23716478425653945472
20 311314468637807994391

List of values

[1, 4, 25, 196, 1747, 16996, 175936, 1907224, 21423385, 247515796, 2925668236, 35239199704, 431207470105, 5347823877172, 67093724913313, 850241358959044, 10869754843088962, 140045452765874704, 1816842996684686656, 23716478425653945472, 311314468637807994391]