A338493 Least number of square pyramidal numbers needed to represent n.

1, 2, 3, 4, 1, 2, 3, 4, 5, 2, 3, 4, 5, 1, 2, 3, 4, 5, 2, 3, 4, 5, 6, 3, 4, 5, 6, 2, 3, 1, 2, 3, 3, 4, 2, 3, 4, 4, 5, 3, 4, 3, 4, 2, 3, 4, 4, 5, 3, 4, 5, 5, 6, 4, 1, 2, 3, 3, 4, 2, 3, 4, 4, 5, 3, 4, 5, 5, 2, 3, 4, 4, 5, 3, 4, 5, 5, 6, 4, 5, 6, 6, 3, 4, 2, 3, 4, 4, 5, 3, 1, 2, 3, 4, 4, 2, 3, 4, 3, 4, 3

Offset: 1

Author

Ilya Gutkovskiy, Oct 30 2020

Keywords

• nonn

Links

• Eric Weisstein's World of Mathematics, Square Pyramidal Number
• Index to sequences related to pyramidal numbers

Crossrefs

Cf. A000330, A002828, A104246, A338484, A338494, A338495.