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A082768
Numbers that begin with 1, 3, 7 or 9.
5
1, 3, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119
OFFSET
1,2
MATHEMATICA
Select[Range[119], MemberQ[{1, 3, 7, 9}, First[IntegerDigits[#]]] &] (* Jayanta Basu, Jun 24 2013 *)
CROSSREFS
Cf. A082769, A082770, A045572 (Numbers that end with 1, 3, 7 or 9).
Sequence in context: A182389 A279615 A169968 * A326911 A037372 A194407
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Apr 18 2003
EXTENSIONS
More terms from David Wasserman, Jul 28 2005
Offset changed by Andrew Howroyd, Sep 29 2024
STATUS
approved