login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A372065
a(n) = (index of prime(n) in A280864) - (index of prime(n) in A280866).
3
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
1,11
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.
LINKS
EXAMPLE
The 11th prime, 31, appears in A280864 at index 49, and in A280866 at index 43, so a(11) = 49 - 43 = 6.
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane, May 10 2024
STATUS
approved