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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.

A378732 G.f. A(x) satisfies A(x) = ( 1 + x / (1 - x*A(x)) )^4.

Table of values

n a(n)
0 1
1 4
2 10
3 36
4 155
5 704
6 3384
7 16844
8 86097
9 449344
10 2384170
11 12822556
12 69743953
13 382982940
14 2120323014
15 11822279232
16 66327376437
17 374162700460
18 2120999728610
19 12075668658000
20 69021358842795
21 395909382981572
22 2278286453089574
23 13149207655326372
24 76096242994616990

List of values

[1, 4, 10, 36, 155, 704, 3384, 16844, 86097, 449344, 2384170, 12822556, 69743953, 382982940, 2120323014, 11822279232, 66327376437, 374162700460, 2120999728610, 12075668658000, 69021358842795, 395909382981572, 2278286453089574, 13149207655326372, 76096242994616990]

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

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