A161358 Shorter side (x) of inner rectangle described in A168339.

1, 1, 2, 2, 3, 3, 3, 3, 3, 4, 3, 4, 5, 4, 5, 4, 5, 5, 5, 5, 6, 5, 5, 6, 7, 6, 6, 7, 6, 6, 7, 7, 6, 7, 7, 8, 7, 7, 7, 8, 9, 7, 8, 8, 9, 7, 8, 8, 9, 9, 8, 8, 7, 9, 10, 8, 9, 9, 9, 10, 11, 9, 9, 10, 10, 11, 9, 9, 10, 10, 11, 11, 10, 10, 10, 11, 11, 12, 10, 10, 9, 11, 11, 12, 13, 9, 11, 11, 12, 12, 13, 11, 11, 11, 12, 12

Offset

1,3

Links

Table of n, a(n) for n=1..96.

Crossrefs

Cf. A161357, A168339. Equals A145288(n)-2.

Sequence in context: A089881 A251547 A084320 * A120699 A072643 A130260

Adjacent sequences: A161355 A161356 A161357 * A161359 A161360 A161361

Keyword

nonn

Author

R. H. Hardin and N. J. A. Sloane, Nov 27 2009

Extensions

Corrected definition and flipped sign in the formula - R. J. Mathar, Mar 06 2010

Status

approved