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A107823 Indices of primes occurring in A107803. 13
3, 16, 2, 6, 5, 7, 4, 12, 9, 1, 10, 8, 11, 13, 14, 15, 19, 18, 20, 21, 22, 17, 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..61.

FORMULA

A107823(n)=pi(A107803(n))

CROSSREFS

Cf. A107801 - A107814, A107821, A107822, A107824, A107825, A107826, A107827, A107828, A107829, A107830, A107831, A107832, A107833, A107834.

Sequence in context: A216149 A194604 A078355 * A139815 A165969 A098373

Adjacent sequences:  A107820 A107821 A107822 * A107824 A107825 A107826

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, May 24 2005

STATUS

approved

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Last modified October 17 08:36 EDT 2019. Contains 328107 sequences. (Running on oeis4.)