A116490 - OEIS

A116490

Numbers that can be written as a product of evil numbers (A001969) and of odious numbers (A000069).

1, 25, 50, 69, 77, 81, 87, 100, 115, 117, 138, 145, 147, 154, 162, 169, 171, 174, 175, 200, 209, 213, 230, 231, 234, 245, 261, 265, 275, 276, 285, 287, 289, 290, 294, 308, 324, 325, 329, 333, 338, 339, 342, 343, 345, 348, 350, 351, 355, 357, 369, 375, 385

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Numbers such that A116488(n) != 0 and A116489(n) != 0.

If m is in the sequence then so is 2*m for m > 1. - David A. Corneth, Mar 27 2021

LINKS

David A. Corneth, Table of n, a(n) for n = 1..12272

EXAMPLE

77 is in the sequence as it's the product of odious numbers via 7*11 and of evil numbers via 1*77. - David A. Corneth, Mar 27 2021

CROSSREFS

Cf. A000069, A001969, A116489, A116490