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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.

A303926 G.f. A(x) satisfies: 1 = Sum_{n>=0} ( (1 + x*A(x))^n - A(x) )^n.

Table of values

n a(n)
0 1
1 1
2 2
3 12
4 130
5 1912
6 34715
7 743217
8 18255118
9 505070221
10 15532353184
11 525533183871
12 19403298048040
13 776437898905606
14 33479679336072541
15 1547841068340501230
16 76390272348430998076
17 4008960603544297652028
18 222949077434693015546579
19 13098226217965693342007714
20 810657425687536689904281842

List of values

[1, 1, 2, 12, 130, 1912, 34715, 743217, 18255118, 505070221, 15532353184, 525533183871, 19403298048040, 776437898905606, 33479679336072541, 1547841068340501230, 76390272348430998076, 4008960603544297652028, 222949077434693015546579, 13098226217965693342007714, 810657425687536689904281842]

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

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