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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.

A066384 a(n) = Sum_{k=0..n} binomial(2^n,k).

Table of values

n a(n)
0 1
1 3
2 11
3 93
4 2517
5 242825
6 83278001
7 100224990433
8 423203101008289
9 6320756952791172417
10 337588530920463407788161
11 65183827170777713040896325889
12 45946801057461743411385200045344257
13 119218150804947710897541255907308439677953
14 1146646393160535279886911833912593527834996340737

List of values

[1, 3, 11, 93, 2517, 242825, 83278001, 100224990433, 423203101008289, 6320756952791172417, 337588530920463407788161, 65183827170777713040896325889, 45946801057461743411385200045344257, 119218150804947710897541255907308439677953, 1146646393160535279886911833912593527834996340737]

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

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