A259241 Areas of rectangles that can be completely filled with squares of side length > 1 (with all side lengths restricted to the natural numbers).

4, 8, 9, 12, 16, 18, 20, 24, 25, 27, 28, 30, 32, 36, 40, 42, 44, 45, 48, 49, 50, 52, 54, 55, 56, 60, 63, 64, 66, 68, 70, 72, 75, 76, 78, 80, 81, 84, 85, 88, 90, 91, 92, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 115, 116, 117, 119, 120, 121, 124, 125

Offset

1,1

Comments

Contains all integers from A013929.

Subset of A078137.

Links

Giovanni Resta, Table of n, a(n) for n = 1..250

Giovanni Resta, Illustration of the first 48 squarefree terms

Example

See illustration in Links.

Crossrefs

Cf. A078137.

Sequence in context: A047462 A020671 A171598 * A289553 A345212 A013929

Adjacent sequences: A259238 A259239 A259240 * A259242 A259243 A259244

Keyword

nonn

Author

Laurance L. Y. Lau, Jun 22 2015

Extensions

a(14)-a(62) from Giovanni Resta, Jun 22 2015

Status

approved