A364717 Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3) < d(k+4), where d(n) is the number of divisors of n.

11371, 11372, 35521, 38281, 45613, 48121, 50821, 50822, 52321, 52322, 54421, 54422, 59341, 59342, 71821, 79621, 86873, 87181, 117841, 125737, 127852, 130021, 130022, 132051, 132206, 133396, 151082, 153221, 173221, 180001, 184973, 186481, 195541, 195542, 196171, 196172

Offset: 1

Author

Seiichi Manyama, Aug 04 2023

Keywords

• nonn

Crossrefs

Cf. A000005, A075028, A364720.

Cf. A074775, A364715, A364716.

Programs

PARI

isok(n) = numdiv(n)