A234533 Smallest number of hex numbers summing to n.

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

Offset

1,2

Comments

This sequence is to A003215 as A002828 is to A000290, and as A061336 is to A000217.

Links

Lars Blomberg, Table of n, a(n) for n = 1..10000

Example

a(21) = 3, because 21 = 19 + 1 + 1 = 7 + 7 + 7, so there are two ways to express 21 as the sum of 3 hex numbers, but no way to express 21 as the sum of 2 hex numbers.

Crossrefs

Sequence in context: A053842 A010885 A338480 * A338495 A053828 A033927

Adjacent sequences: A234530 A234531 A234532 * A234534 A234535 A234536

Keyword

nonn

Author

Allan C. Wechsler, Dec 27 2013

Extensions

a(27)-a(87) from Lars Blomberg, Jan 07 2014

Status

approved