A107824 Indices of primes occurring in A107804.

4, 7, 5, 6, 2, 9, 1, 10, 8, 11, 12, 14, 13, 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

Links

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

Formula

A107824(n)=pi(A107804(n))

Crossrefs

Cf. A107801 - A107814, A107821, A107822, A107823, A107825, A107826, A107827, A107828, A107829, A107830, A107831, A107832, A107833, A107834.

Sequence in context: A322580 A122165 A086202 * A085674 A200391 A357483

Adjacent sequences: A107821 A107822 A107823 * A107825 A107826 A107827

Keyword

easy,nonn

Author

Zak Seidov, May 24 2005

Status

approved