A103760 Number of contiguous non-i digits in the counting numbers, for i=1.

1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 4, 19, 19, 19, 19, 19, 19, 19, 16, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2

Offset

1,2

Comments

Write the natural numbers as an infinite sequence of digits, starting at the left; and count the contiguous non-1 digits separated by digits "1".

Links

Table of n, a(n) for n=1..101.

Example

a(1)=1: the unique digit ("0") before the first "1".
a(2)=8: the 8 digits 0(1)23456789(1)01112... between the first "1" and the "1" of 10.
a(3)=1: the "0" of 10, in between "1" de 10 and "1" of 11.

Crossrefs

Sequence in context: A368167 A367513 A368540 * A268355 A008834 A368170

Adjacent sequences: A103757 A103758 A103759 * A103761 A103762 A103763

Keyword

base,easy,nonn

Author

Alexandre Wajnberg, Mar 28 2005

Status

approved