A338480 Least number of heptagonal numbers needed to represent n.

1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 2, 3, 4, 5, 1, 2, 3, 3, 4, 5, 6, 2, 3, 4, 4, 5, 6, 7, 3, 4, 1, 2, 2, 3, 4, 4, 5, 2, 3, 3, 4, 5, 5, 6, 3, 4, 4, 5, 2, 3, 3, 1, 2, 3, 4, 3, 4, 4, 2, 3, 4, 5, 4, 5, 2, 3, 3, 4, 4, 2, 3, 3, 4, 4, 5, 5, 3, 1, 2, 3, 4, 5, 3, 4, 2, 2, 3, 3, 4, 4, 5, 3, 3, 4, 4, 2, 3, 4

Offset

1,2

Links

Table of n, a(n) for n=1..101.

Eric Weisstein's World of Mathematics, Heptagonal Number

Index to sequences related to polygonal numbers

Crossrefs

Cf. A000566, A002828, A061336, A100878, A338479, A338481.

Sequence in context: A338880 A053842 A010885 * A234533 A338495 A053828

Adjacent sequences: A338477 A338478 A338479 * A338481 A338482 A338483

Keyword

nonn,changed

Author

Ilya Gutkovskiy, Oct 29 2020

Status

approved