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A261166 List run lengths of digits different from '6', when all terms are concatenated. Lexicographically first such sequence of nonnegative numbers with no repeated terms. 3
1, 6, 0, 2, 3, 4, 5, 7, 66, 8, 9, 60, 10, 61, 11, 16, 12, 13, 26, 14, 15, 17, 36, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 62, 54, 55, 57, 46, 58, 59, 70, 71, 56, 72, 73, 74, 75, 77 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A261161 - A261163 for comments and examples.

LINKS

Table of n, a(n) for n=1..71.

E. Angelini, To reach the next "1", SeqFan list, August 10, 2015.

PROG

(PARI) A261166(n=99, d=6, a=1, p=0, u=[-1], r=u)={for(n=2, n, print1(a", "); p+=#digits(a)+!a; r=concat(r, r[#r]+a+1); while(#r>1&&r[1]<p, r=r[2..-1]); u=setunion(u, [a]); while(#u>1&&u[2]==u[1]+1, u=u[2..-1]); for(k=u[1]+1, 9e9, setsearch(u, k)&&next; if(r[1] >= p+#dk=if(k, digits(k), [0]), setsearch(Set(dk), d)&&next, for(i=1, #dk, (dk[i]==d)==!setsearch(r, p+i-1)&&next(2))); a=k; next(2)); error); a}

CROSSREFS

Cf. A261160 - A261165, A261167 - A261169.

Sequence in context: A070062 A274542 A327837 * A021170 A329093 A195406

Adjacent sequences:  A261163 A261164 A261165 * A261167 A261168 A261169

KEYWORD

nonn,base

AUTHOR

Eric Angelini and M. F. Hasler, Aug 10 2015

STATUS

approved

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Last modified July 14 18:26 EDT 2020. Contains 335729 sequences. (Running on oeis4.)