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A266420
Odd unlucky numbers.
2
5, 11, 17, 19, 23, 27, 29, 35, 39, 41, 45, 47, 53, 55, 57, 59, 61, 65, 71, 77, 81, 83, 85, 89, 91, 95, 97, 101, 103, 107, 109, 113, 117, 119, 121, 123, 125, 131, 137, 139, 143, 145, 147, 149, 153, 155, 157, 161, 165, 167, 173, 175, 177, 179, 181, 183, 185, 187, 191, 197, 199, 203, 207, 209, 213, 215, 217, 221, 225
OFFSET
1,1
LINKS
PROG
(Scheme, with Antti Karttunen's IntSeq-library)
(define A266420 (MATCHING-POS 1 1 (lambda (n) (and (odd? n) (zero? (A145649 n))))))
CROSSREFS
Intersection of A005408 and A050505.
Cf. also A071904, A266419
Sequence in context: A119754 A239127 A220432 * A317048 A081717 A096264
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 28 2016
STATUS
approved