A064576 First differences of A064573.

1, 1, 2, 1, 3, 1, 4, 2, 5, 1, 8, 1, 7, 3, 10, 1, 13, 1, 15, 4, 15, 1, 23, 2, 21, 5, 27, 1, 33, 1, 36, 6, 37, 3, 53, 1, 47, 8, 62, 1, 68, 1, 75, 11, 75, 1, 103, 2, 97, 10, 115, 1, 126, 4, 142, 13, 141, 1, 181, 1, 167, 17, 202, 4, 218, 1, 239, 16, 243, 1, 302, 1, 285, 22, 331, 3, 349

Offset

1,3

Comments

Apparently a(n)=1 when n+1 is prime.

Links

Table of n, a(n) for n=1..77.

Crossrefs

A064572, A064573, A064574, A064575, A064577, A028422.

Sequence in context: A250028 A101279 A361735 * A322390 A113308 A325332

Adjacent sequences: A064573 A064574 A064575 * A064577 A064578 A064579

Keyword

easy,nonn

Author

Marc LeBrun, Sep 20 2001

Status

approved