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A342045
When a digit d is odd, the next digit is < d.
6
0, 2, 3, 10, 4, 5, 20, 6, 7, 22, 8, 9, 23, 24, 25, 26, 27, 28, 29, 30, 32, 40, 42, 43, 100, 44, 45, 46, 47, 48, 49, 50, 52, 53, 102, 54, 60, 62, 63, 103, 104, 64, 65, 105, 106, 66, 67, 68, 69, 70, 72, 73, 107, 108, 74, 75, 109, 76, 80, 82, 83, 200, 84, 85, 202, 86, 87, 203, 204, 88, 89, 205, 206, 90, 92, 93
OFFSET
1,2
COMMENTS
After a(1) = 0, the sequence is always extended with the smallest positive integer not yet present that doesn't lead to a contradiction.
No term ends in 1 (as this 1 would block the sequence).
LINKS
PROG
(PARI) See Links section.
CROSSREFS
Cf. A342042, A342043, A342044, A342046 and A342047 (variations on the same idea).
Sequence in context: A280941 A347122 A130110 * A307591 A031275 A306465
KEYWORD
base,nonn
AUTHOR
Eric Angelini, Feb 26 2021
STATUS
approved