A342044 - OEIS

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A342044

When a digit d is odd, the next digit is > d.

0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 40, 14, 15, 60, 16, 17, 80, 18, 20, 21, 22, 23, 41, 24, 25, 61, 26, 27, 81, 28, 34, 35, 62, 36, 37, 82, 38, 42, 43, 44, 45, 63, 46, 47, 83, 48, 56, 57, 84, 58, 64, 65, 66, 67, 85, 68, 78, 86, 87, 88, 120, 121, 200, 122, 123, 400, 124, 125, 600, 126, 127, 800, 128

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

The sequence is always extended with the smallest positive integer not yet present that doesn't lead to a contradiction.

No digit 9 is present in the sequence (as 9, being odd, would block it).

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program for A342044

PROG

(PARI) See Links section.

CROSSREFS