A334090 a(1) = 0, and then after the first differences of A064097.

0, 1, 1, 0, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 0, -1, 1, 0, 1, -1, 1, 0, 1, -2, 1, 0, 0, 0, 1, -1, 1, -2, 2, -1, 1, -1, 1, 0, 0, -1, 1, 0, 1, -1, 0, 1, 1, -3, 2, -1, 0, 0, 1, -1, 1, -1, 1, 0, 1, -2, 1, 0, 0, -2, 2, 0, 1, -2, 2, -1, 1, -2, 1, 0, 0, 0, 1, -1, 1, -2, 1, 0, 1, -1, 0, 1, 0, -1, 1, -1, 1, 0, 0, 1, -1, -2, 1, 1, 0, -1, 1, -1, 1, -1, 1

Offset

1,24

Links

Antti Karttunen, Table of n, a(n) for n = 1..65537

Formula

a(1) = 0, and for n > 1, a(n) = A064097(n) - A064097(n-1).

a(n) = A334091(n) + A334195(n).

Prog

(PARI)
A064097(n) = if(1==n, 0, 1+A064097(n-(n/vecmin(factor(n)[, 1]))));
A334090(n) = if(1==n, 0, A064097(n)-A064097(n-1));

Crossrefs

Cf. A064097, A334091, A334195.

Cf. A334197 (positions of records).

Cf. also A332903.

Sequence in context: A143111 A328361 A301367 * A179195 A372360 A238386

Adjacent sequences: A334087 A334088 A334089 * A334091 A334092 A334093

Keyword

sign

Author

Antti Karttunen, Apr 17 2020

Status

approved