A228328 Start with 1. Successive digits in the sequence must differ by 2. Adjoin the smallest number not yet in the sequence.

1, 3, 5, 7, 9, 75, 31, 35, 79, 753, 13, 53, 57, 97, 531, 313, 131, 353, 135, 357, 535, 757, 575, 797, 579, 7531, 3131, 3135, 3531, 3535, 3575, 3579, 7535, 7575, 7579, 7975, 7979, 75313, 1313, 1353, 1357, 975, 31313, 5313, 5353, 5357, 979, 75353, 5753, 5757

Offset

1,2

Comments

Is the sequence infinite?

References

Eric Angelini, Posting to the Sequence Fans Mailing List, Aug 23 2013.

Links

Alois P. Heinz, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A228326, A228327.

Sequence in context: A234524 A260681 A092046 * A085951 A132286 A070788

Adjacent sequences: A228325 A228326 A228327 * A228329 A228330 A228331

Keyword

nonn,base,look

Author

N. J. A. Sloane, Aug 24 2013

Extensions

More terms from Alois P. Heinz, Aug 25 2013

Status

approved