A045843 Number of distinct even numbers formed from the digits of n.

1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 3, 2, 2, 2, 4, 2, 4, 2, 4, 2, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 3, 2, 4, 2, 2, 2, 4, 2, 4, 2, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 3, 2, 4, 2, 4, 2, 2, 2, 4, 2, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 3, 2, 4, 2, 4, 2, 4, 2, 2, 2, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0

Offset

0,11

Links

Table of n, a(n) for n=0..99.

Example

a(24)=4 because we can form 2, 4, 24 and 42.

Crossrefs

Sequence in context: A036665 A053472 A036664 * A363885 A181587 A096158

Adjacent sequences: A045840 A045841 A045842 * A045844 A045845 A045846

Keyword

nonn,base,easy

Author

Felice Russo

Extensions

Extended and corrected by Erich Friedman.

Status

approved