A076494 Number of common decimal digits of 2^n and 2^(1+n).

0, 0, 0, 0, 0, 0, 1, 2, 2, 3, 2, 1, 2, 3, 2, 1, 2, 2, 3, 4, 3, 2, 1, 1, 1, 4, 4, 5, 6, 6, 4, 3, 3, 5, 6, 6, 5, 4, 4, 5, 5, 5, 6, 7, 6, 6, 7, 6, 6, 7, 7, 6, 5, 5, 6, 5, 7, 8, 7, 8, 8, 8, 8, 8, 8, 7, 9, 9, 9, 7, 6, 7, 7, 8, 8, 8, 7, 9, 9, 8, 9, 9, 9, 9, 8, 9, 10, 10, 9, 7, 8, 8, 9, 10, 10, 10, 10, 9, 9, 10, 9

Offset

1,8

Links

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

Mathematica

Table[Length[Intersection[IntegerDigits[2^n], InterDigits[2^(n+1)]]], {n, 1, 100}]

Crossrefs

Cf. A006880, A076489-A076493.

Sequence in context: A253141 A100890 A262815 * A217721 A071862 A030362

Adjacent sequences: A076491 A076492 A076493 * A076495 A076496 A076497

Keyword

base,nonn

Author

Labos Elemer, Oct 21 2002

Status

approved