A090047 Length of longest contiguous block of 0's in binary expansion of n^2.

1, 0, 2, 2, 4, 2, 2, 3, 6, 3, 2, 2, 4, 2, 3, 4, 8, 4, 3, 2, 4, 2, 2, 4, 6, 3, 2, 2, 4, 2, 4, 5, 10, 5, 4, 2, 4, 2, 2, 3, 6, 3, 2, 2, 4, 2, 4, 4, 8, 4, 3, 3, 4, 2, 2, 3, 6, 3, 2, 2, 4, 3, 5, 6, 12, 6, 5, 3, 4, 2, 2, 3, 6, 3, 2, 2, 4, 2, 3, 4, 8, 4, 3, 2, 4, 4, 2, 3, 6, 3, 2, 6, 4, 4, 4, 5, 10, 5, 4, 2, 4, 2

Offset

0,3

Comments

a(n) = A087117(A000290(n)).

Links

Table of n, a(n) for n=0..101.

Crossrefs

Cf. A023416, A090049, A090048, A090046, A090001.

Sequence in context: A295639 A374587 A182982 * A245525 A233412 A327892

Adjacent sequences: A090044 A090045 A090046 * A090048 A090049 A090050

Keyword

nonn,base

Author

Reinhard Zumkeller, Nov 20 2003

Status

approved