A290387 Increasing sequence where a(n) is the smallest integer not yet in the sequence with no digits shared with the term a(n-2), no repeated digits, and no 0-digit allowed.

1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 34, 42, 51, 53, 62, 64, 71, 72, 82, 83, 91, 92, 234, 314, 516, 526, 723, 731, 814, 824, 923, 931, 1456, 2456, 2738, 3178, 4156, 4256, 7238, 7318, 9145, 9245, 23678, 31678

Offset

1,2

Links

Table of n, a(n) for n=1..45.

Example

a(35)=2456 is followed by a(36)=2738 (and not 2378, which contains digits different from those in a(34)=1456) since otherwise the sequence would not be increasing.

Crossrefs

Cf. A290386.

Sequence in context: A087087 A050742 A350572 * A342950 A238985 A337230

Adjacent sequences: A290384 A290385 A290386 * A290388 A290389 A290390

Keyword

nonn,base,fini,full

Author

Enrique Navarrete, Jul 28 2017

Status

approved