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

Author

Juri-Stepan Gerasimov, Apr 20 2015

Keywords

• nonn
• easy

Comments

Numbers n such that A242667(n) = 0.

Crossrefs

Cf. A005117, A013929, A242667.