A338493 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

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

Eric Weisstein's World of Mathematics, Square Pyramidal Number

Index to sequences related to pyramidal numbers

CROSSREFS

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

Sequence in context: A100878 A145172 A338484 * A280053 A283365 A053824

Adjacent sequences: A338490 A338491 A338492 * A338494 A338495 A338496

KEYWORD

nonn

AUTHOR

Ilya Gutkovskiy, Oct 30 2020

STATUS

approved