A372065 a(n) = (index of prime(n) in A280864) - (index of prime(n) in A280866).

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 1, 5, 5, 5, 0, -1, -2, 3, 13, 12, 13, 12, 9, 6, 6, 11, 11, 24, 28, 38, 74, 70, 55, 49, 58, 60, 60, 54, 46, 51, 50, 43, 54, 51, 44, 36, 36, 21, 34, 45, 39, 25, 25, 22, 24, 24, 25, 42, 44, 27, 38, 33, 26, 28, 22, 24, 32, 56, 72, 84, 63, 67, 107, 114, 111, 104, 108, 105, 93, 100, 100, 108, 105, 96, 94, 92

Offset: 1

Author

N. J. A. Sloane, May 10 2024

Keywords

• sign

Comments

A372063 compares A280864 and A280866 term-by-term; A372064 compares their inverses; and the present sequence compares where the successive primes appear.

This is a subsequence of A372064.

Examples

			The 11th prime, 31, appears in A280864 at index 49, and in A280866 at index 43, so a(11) = 49 - 43 = 6.
		

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..2262

Crossrefs

Cf. A280864, A280741, A280866, A304741, A372063, A372064.