The On-Line Encyclopedia of Integer Sequences (OEIS)

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A107825

Indices of primes occurring in A107805.
(history; published version)

#2 by Russ Cox at Fri Mar 30 17:26:16 EDT 2012

AUTHOR

_Zak Seidov (zakseidov(AT)yahoo.com), _, May 24 2005

Discussion

Fri Mar 30

17:26

OEIS Server: https://oeis.org/edit/global/139

#1 by N. J. A. Sloane at Tue Jul 19 03:00:00 EDT 2005

NAME

Indices of primes occurring in A107805.

DATA

5, 6, 2, 9, 1, 10, 8, 7, 4, 12, 11, 13, 14, 15, 19, 18, 20, 21, 16, 3, 17, 22, 24, 23, 27, 26, 28, 25, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61

OFFSET

1,1

FORMULA

A107825(n)=pi(A107805(n))

CROSSREFS

Cf. A107801 - A107814, A107821, A107822, A107823, A107824, A107826, A107827, A107828, A107829, A107830, A107831, A107832, A107833, A107834.

KEYWORD

easy,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), May 24 2005

STATUS

approved