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A276512 a(n) = smallest integer not yet in the sequence with no digits in common with a(n-2); a(0)=0, a(1)=1. 6
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 22, 20, 13, 14, 24, 23, 15, 16, 26, 25, 17, 18, 28, 27, 19, 30, 32, 12, 40, 33, 21, 29, 34, 31, 50, 42, 36, 35, 41, 44, 37, 38, 45, 46, 39, 51, 47, 43, 52, 55, 48, 49, 53, 56, 60, 70, 54, 58, 61, 62, 57, 59, 63, 64, 71, 72, 65, 66, 73, 74, 68, 69, 75 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

This is not a permutation of the nonnegative integers. E.g. 123456789 and 1023456789 (the smallest pandigital number) are not members.

a(n) = n for n = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 34, 84, 104, 105, 1449, 2889, 3183, ...

LINKS

Zak Seidov, Table of n, a(n) for n = 0..5000

MATHEMATICA

s={0, 1}; Do[a=s[[-2]]; n=2; While[MemberQ[s, n]||Intersection [IntegerDigits[a], IntegerDigits[n]]≠{}, n++]; AppendTo[s, n], {100}]; s

CROSSREFS

Cf. A054659, A067581, A276633, A276766.

Sequence in context: A068637 A004186 A034704 * A023792 A221221 A178354

Adjacent sequences:  A276509 A276510 A276511 * A276513 A276514 A276515

KEYWORD

nonn,base

AUTHOR

Zak Seidov and Eric Angelini, Sep 06 2016

STATUS

approved

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Last modified May 12 19:15 EDT 2021. Contains 343829 sequences. (Running on oeis4.)