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A175621 2^(composite(n)-4) mod composite(n). 2
1, 4, 0, 5, 4, 4, 2, 8, 0, 4, 16, 11, 14, 16, 2, 10, 5, 8, 4, 0, 17, 30, 23, 4, 24, 20, 16, 4, 12, 32, 6, 16, 8, 14, 26, 40, 22, 13, 16, 29, 22, 16, 8, 32, 0, 2, 4, 52, 35, 64, 40, 28, 23, 20, 30, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..56.

MAPLE

A175621 := proc(n) local c ; c := A002808(n) ; (2^(c-4)) mod c ; end proc:

seq(A175621(n), n=1..80) ;

CROSSREFS

Cf. A000079, A002808.

Sequence in context: A019906 A197251 A049247 * A016578 A268631 A308108

Adjacent sequences:  A175618 A175619 A175620 * A175622 A175623 A175624

KEYWORD

nonn,less

AUTHOR

Juri-Stepan Gerasimov, Dec 04 2010

EXTENSIONS

Corrected by D. S. McNeil, Dec 04 2010

STATUS

approved

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Last modified July 2 08:50 EDT 2020. Contains 335398 sequences. (Running on oeis4.)