1,1

Table of n, a(n) for n=1..69.

Pick the first "10" of the sequence; there are 10 even digits and 10 odd digits in the interval ]0;11[ --> 10 times "0" and 10 times "1".

Take "30"; there are 30 even digits and 30 odd digits in the interval ]0;31[, etc.

Sequence in context: A163139 A269352 A010692 * A160941 A070565 A169932

Adjacent sequences: A109748 A109749 A109750 * A109752 A109753 A109754

base,easy,nonn

Eric Angelini, Aug 11 2005

approved