A338494 Least number of pentagonal pyramidal numbers needed to represent n.

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

Offset

1,2

Links

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

Eric Weisstein's World of Mathematics, Pentagonal Pyramidal Number

Index to sequences related to pyramidal numbers

Crossrefs

Cf. A002411, A100878, A104246, A338491, A338493, A338495.

Sequence in context: A338479 A193106 A338491 * A283370 A053827 A033926

Adjacent sequences: A338491 A338492 A338493 * A338495 A338496 A338497

Keyword

nonn

Author

Ilya Gutkovskiy, Oct 30 2020

Status

approved