A167523 Positions of zero digits in A167503 (when all terms are concatenated).

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

Offset: 1

Author

M. F. Hasler, Nov 05 2009

Keywords

• nonn
• base

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).

Examples

			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.
		

Crossrefs

Cf. A167500-A167503.

Programs

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
				

Extensions

Edited by Charles R Greathouse IV, Aug 02 2010