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A080944
Numbers having only trivial divisors that are also suffixes in binary representation.
3
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 52, 53, 55, 56, 57, 58, 59, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 76, 77, 79, 80, 81, 82, 83
OFFSET
1,2
COMMENTS
A080942(a(n))<=2; union of powers of 2 (A000079) and A080943; complement of A080945.
LINKS
PROG
(Haskell)
a080944 n = a080944_list !! (n-1)
a080944_list = filter ((<= 2) . a080942) [1..]
-- Reinhard Zumkeller, Mar 27 2014
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Feb 25 2003
STATUS
approved