A327462 Number of holes in decimal expansion of n-th prime.

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

Offset

1,23

Comments

This is A064692 restricted to the primes.

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Prog

(PARI) forprime (p=2, 439, print1 (vecsum(apply(d -> [1, 0, 0, 0, 1, 0, 1, 0, 2, 1][1+d], digits(p))) ", ")) \\ Rémy Sigrist, Sep 27 2019

Crossrefs

Cf. A035103, A064692, A249572, A250256, A327820.

Sequence in context: A070077 A337200 A337201 * A255824 A122587 A276333

Adjacent sequences: A327459 A327460 A327461 * A327463 A327464 A327465

Keyword

nonn,base

Author

N. J. A. Sloane, Sep 27 2019

Status

approved