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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.

A167823 Subsequence of A167709 whose indices are congruent to 2 mod 5, i.e., a(n) = A167709(5*n+2).

Table of values

n a(n)
0 15
1 5124
2 1742145
3 592324176
4 201388477695
5 68471490092124
6 23280105242844465
7 7915167311077025976
8 2691133605660945987375
9 914977510757410558681524
10 311089662523913929005730785
11 105769570280619978451389785376
12 35961342805748268759543521297055

List of values

[15, 5124, 1742145, 592324176, 201388477695, 68471490092124, 23280105242844465, 7915167311077025976, 2691133605660945987375, 914977510757410558681524, 311089662523913929005730785, 105769570280619978451389785376, 35961342805748268759543521297055]

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

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