A113565 - OEIS

A113565

a(0) = 1; then skip 2^n digits in the concatenation of natural numbers. 1234567891011121314151617181920212223242526... 1 3 6 0 1 3...

1, 3, 6, 0, 1, 3, 4, 2, 4, 1, 8, 7, 0, 8, 4, 4, 3, 9, 6, 2, 3, 6, 7, 5, 4, 3, 4, 8, 9, 9, 6, 4, 0, 8, 3, 7, 8, 1, 6, 0, 4, 5, 3, 7, 4, 5, 4, 3, 2, 3, 7, 2, 4, 6, 7, 6, 4, 9, 1, 3, 8, 7, 2, 9, 6, 2, 9, 5, 1, 4, 5, 7, 3, 6, 8, 2, 6, 8, 7, 5, 1, 4, 2, 8, 7, 9, 6, 6, 5, 4, 8, 6, 3, 5, 3, 7, 3, 9, 8, 3, 2, 2, 7, 4, 8