A338458 Least number of heptagonal pyramidal numbers needed to represent n.

1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 2, 3, 4, 5, 6, 7, 8, 9, 3, 4, 1, 2, 3, 4, 5, 6, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 3, 4, 5, 6, 7, 8, 6, 7, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 1, 2, 3, 4, 5, 6, 6, 7, 2, 3, 4, 5, 6, 7, 7, 8, 3, 4, 3, 4, 5, 6, 7, 8, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 3, 4, 5, 6, 7, 8, 6, 7

Offset

1,2

Links

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

Eric Weisstein's World of Mathematics, Heptagonal Pyramidal Number

Index to sequences related to pyramidal numbers

Crossrefs

Cf. A002413, A104246, A338480, A338492, A338493, A338494, A338495, A338496.

Sequence in context: A010886 A338481 A338492 * A002376 A055401 A053829

Adjacent sequences: A338455 A338456 A338457 * A338459 A338460 A338461

Keyword

nonn

Author

Ilya Gutkovskiy, Oct 31 2020

Status

approved