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 A167523 Positions of zero digits in A167503 (when all terms are concatenated). 2
 4, 8, 12, 13, 15, 18, 30, 33, 37, 46, 54, 55, 56, 58, 59, 62, 63, 66, 70, 74, 78, 83, 84, 87, 92, 104, 115, 116, 119, 124, 136, 146, 148, 150, 152, 154, 159, 163, 176, 183, 184, 187, 192, 210, 211, 212, 213, 215, 216, 217, 220, 221, 225, 226, 230, 231, 235, 236, 240 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Also, positive integers not occurring in A167503 (bearing in mind that the terms of A167503 are written in base 3, but here numbers are written in base 10). LINKS EXAMPLE Sequence A167503: 1,2,10,12,20,21,100,101 Digit's position: 1 2 34 56 78 9A BCD EFG (A=10,...) Thus the digits '0' occur at positions 4,8,12,13,15,...: this sequence. PROG (PARI) base(n, b=3, s=1) = { my( a=[ n%b ]); while( 0=n && for(i=a[n-1]+1, #b, b[i] && (a=concat(a, i)) && break); #a

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Last modified June 25 04:52 EDT 2021. Contains 345452 sequences. (Running on oeis4.)