A256887 Squareful numbers that are not the sum of one or more consecutive squarefree numbers.

4, 9, 12, 20, 25, 50, 54, 56, 60, 68, 88, 96, 124, 125, 135, 148, 150, 152, 153, 156, 162, 164, 169, 175, 198, 207, 225, 236, 242, 248, 276, 279, 289, 292, 325, 344, 356, 375, 276, 412, 425, 436, 450, 488, 513, 516, 585, 628, 639, 688, 722, 728, 764, 801, 808, 847, 855, 916, 948

Offset

1,1

Comments

Numbers n such that A242667(n) = 0.

Links

Table of n, a(n) for n=1..59.

Crossrefs

Cf. A005117, A013929, A242667.

Sequence in context: A312867 A312868 A312869 * A119640 A332225 A186130

Adjacent sequences: A256884 A256885 A256886 * A256888 A256889 A256890

Keyword

nonn,easy

Author

Juri-Stepan Gerasimov, Apr 20 2015

Status

approved