A338491 Least number of centered pentagonal numbers needed to represent n.

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

Offset

1,2

Links

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

Eric Weisstein's World of Mathematics, Centered Pentagonal Number

Index entries for sequences related to centered polygonal numbers

Crossrefs

Cf. A005891, A100878, A101412, A234533, A338482, A338484, A338492, A338494.

Sequence in context: A106652 A338479 A193106 * A338494 A283370 A053827

Adjacent sequences: A338488 A338489 A338490 * A338492 A338493 A338494

Keyword

nonn

Author

Ilya Gutkovskiy, Oct 30 2020

Status

approved