A320062 Nonprimes with odd digits only.

1, 9, 15, 33, 35, 39, 51, 55, 57, 75, 77, 91, 93, 95, 99, 111, 115, 117, 119, 133, 135, 153, 155, 159, 171, 175, 177, 195, 315, 319, 333, 335, 339, 351, 355, 357, 371, 375, 377, 391, 393, 395, 399, 511, 513, 515, 517, 519, 531, 533, 535, 537, 539, 551, 553, 555

Offset: 1

Author

Enrique Navarrete, Oct 04 2018

Keywords

• nonn
• base

Links

• Mia Boudreau, Table of n, a(n) for n = 1..10000

Crossrefs

Intersection of A018252 and A014261.

Supersequence of A062016.

Programs

PARI

isok(n) = !isprime(n) && (d=digits(n)) && (#select(x->x%2, d) == #d); \\ Michel Marcus, Oct 05 2018