A272817 Distance from n-th highly composite number (cf. A002182) to nearest prime or square.

0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 11, 13, 1, 11, 1, 17, 1, 1, 13, 13, 1, 1, 17, 1, 17, 1, 1, 17, 17, 17, 1, 1, 19, 37, 37, 1, 1, 23, 1, 29, 1, 1, 19, 1, 19, 23, 1, 19, 31, 1, 19, 1, 1, 1, 1, 23, 1, 29, 23, 23, 1, 23, 71, 37

Offset

1,24

Comments

Conjecture: Terms are either 1 or prime, n>7. - Bill McEachen, Jun 11 2025

Links

Giovanni Resta, Table of n, a(n) for n = 1..1000 (based on A002182 b-file)

Crossrefs

Cf. A002182, A005235, A117825, A141345.

Sequence in context: A007651 A022481 A156338 * A262282 A034080 A107805

Adjacent sequences: A272814 A272815 A272816 * A272818 A272819 A272820

Keyword

nonn

Author

Vladimir Shevelev, May 07 2016

Extensions

a(25)-a(77) from Giovanni Resta, May 07 2016

Status

approved