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A275511
The a(n)th term of the sequence contains at least one digit "1".
0
1, 3, 10, 5, 11, 7, 12, 9, 13, 14, 15, 16, 17, 18, 19, 21, 31, 41, 51, 22, 61, 71, 24, 81, 26, 91, 28, 100, 30, 101, 102, 33, 103, 35, 104, 37, 105, 39, 106, 42, 107, 108, 44, 109, 46, 110, 48, 111, 50, 112, 113, 53, 114, 55, 115, 57, 116, 59, 117, 62, 118, 119, 64, 120, 66, 121, 68, 122, 70, 123, 124, 73, 125, 75, 126, 77, 127, 79, 128, 82, 130, 131, 84
OFFSET
1,2
COMMENTS
The sequence starts with a(1)=1 and was always extended with the smallest integer not yet used that does not lead to a contradiction.
EXAMPLE
The 1st term (1) says that the 1st term contains at least a "1" -- indeed (it is 1)
The next term (3) says that the 3rd term contains at least a "1" -- indeed (it is 10)
The next term (10) says that the 10th term contains at least a "1" -- indeed (it is 14)
The next term (5) says that the 5th term contains at least a "1" -- indeed (it is 11)
The next term (11) says that the 11th term contains at least a "1" -- indeed (it is 15)
The next term (7) says that the 7th term contains at least a "1" -- indeed (it is 12)
etc.
CROSSREFS
Sequence in context: A100984 A045985 A247034 * A035411 A033478 A285576
KEYWORD
nonn,base
AUTHOR
Eric Angelini, Jul 31 2016
STATUS
approved