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.

A063408 Number of cyclic subgroups of order 5 of general affine group AGL(n,2).

Original entry on oeis.org

0, 0, 0, 5376, 2666496, 895942656, 260079353856, 5663488009568256, 731639373896934752256, 63867566904037836331155456, 4781235184059094238818788704256, 436966645827601226875601365191622656
Offset: 1

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Author

Vladeta Jovovic, Jul 17 2001

Keywords

Comments

Number of cyclic subgroups of order m in general affine group AGL(n,2) is 1/phi(m)*Sum_{d|m} mu(m/d)*b(n,d), where b(n,d) is number of solutions to x^d=1 in AGL(n,2).

Crossrefs

Formula

a(n) = (A063388(n)-1)/4.