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A163753
At least one prime occurs as a substring of the digits of n.
4
2, 3, 5, 7, 11, 12, 13, 15, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 45, 47, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 65, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 82, 83, 85, 87, 89, 92, 93, 95, 97, 101, 102
OFFSET
1,1
COMMENTS
A039997(a(n)) > 0. - Reinhard Zumkeller, Jan 31 2012
This sequence (written in decimal) is automatic in the terminology of Allouche & Shallit since A071062 is finite. - Charles R Greathouse IV, Jan 31 2012
EXAMPLE
a(6) = 12 because "2" is a prime substring of "12".
PROG
(Haskell)
a163753 n = a163753_list !! (n-1)
a163753_list = filter ((> 0) . a039997) [0..]
-- Reinhard Zumkeller, Jan 31 2012
CROSSREFS
Cf. A062115 (complement), A205667 (subsequence), A071062.
Sequence in context: A117283 A198096 A137923 * A131930 A230918 A001742
KEYWORD
base,easy,nonn
AUTHOR
Gil Broussard, Aug 03 2009
STATUS
approved