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A107830 Indices of primes occurring in A107810. 13
10, 1, 9, 2, 6, 5, 7, 4, 12, 11, 8, 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

A107830(n)=pi(A107810(n))

CROSSREFS

Cf. A107801 - A107814, A107821, A107822, A107823, A107824, A107825, A107826, A107827, A107828, A107829, A107831, A107832, A107833, A107834.

Sequence in context: A160928 A105162 A010184 * A144261 A046148 A231933

Adjacent sequences:  A107827 A107828 A107829 * A107831 A107832 A107833

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, May 24 2005

STATUS

approved

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Last modified November 22 16:31 EST 2019. Contains 329396 sequences. (Running on oeis4.)