A065623 -id:A065623

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A065624

Smallest m such that A065623(m) = n.

+20
2

2, 0, 10, 26, 4, 7, 29, 51, 73, 84, 615, 95, 1881, 18698, 117, 2602, 5552, 128, 7938, 19653, 19386, 10156, 1636, 139, 6529, 13629, 20374, 16890, 11920, 6950, 2690, 150, 1925, 5475, 9380, 12575, 15770, 18965, 21805, 24645, 24334, 21849, 19719, 17234

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 0..500

EXAMPLE

The first time A065624 = 3 is 26 because A065624(26) = floor(abs(cos(26)/cos(2*26))) = 3.

PROG

(PARI) { for (n=0, 500, m=0; while (floor(abs(cos(m)/cos(2*m))) != n, m++); write("b065624.txt", n, " ", m) ) } \\ Harry J. Smith, Oct 25 2009

CROSSREFS

Cf. A065623.

KEYWORD

nonn

AUTHOR

Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Nov 07 2001

EXTENSIONS

a(1) corrected by Harry J. Smith, Oct 25 2009

STATUS

approved

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