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.

A249747 a(n) = floor((A002110(n) * A054272(n)) / A001248(n)).

Table of values

n a(n)
1 1
2 2
3 8
4 51
5 496
6 6041
7 97155
8 1746481
9 38377034
10 1053921489
11 31722366805
12 1127475187757
13 45429396874080
14 1910408631449923
15 87682336584597009
16 4571067440374822934
17 260160909199262899454
18 15823372061924831882182
19 1034588557961336117180784
20 72606463908572608290939197
21 5235472173106695729625747152
22 407296805992490241506213234700

List of values

[1, 2, 8, 51, 496, 6041, 97155, 1746481, 38377034, 1053921489, 31722366805, 1127475187757, 45429396874080, 1910408631449923, 87682336584597009, 4571067440374822934, 260160909199262899454, 15823372061924831882182, 1034588557961336117180784, 72606463908572608290939197, 5235472173106695729625747152, 407296805992490241506213234700]

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

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