A116378 Number of partitions of n into parts with digital root = 8.
0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 2, 1, 0, 0, 0, 0, 1, 1, 2, 2, 1, 0, 0, 0, 1, 1, 2, 3, 3, 1, 0, 0, 1, 1, 2, 3, 4, 3, 1, 0, 1, 1, 2, 3, 5, 5, 4, 1, 1, 1, 2, 3, 5, 6, 7, 4, 2, 1, 2, 3, 5, 7, 9, 8, 6, 2, 2, 3, 5, 7, 10, 11, 11, 6, 3, 3, 5, 7, 11, 13
Offset: 1
Examples
a(51) = #{35+8+8, 26+17+8, 17+17+17} = 3.
Links
- Eric Weisstein's World of Mathematics, Digital Root
Crossrefs
Cf. A010888.
A147706. [From Reinhard Zumkeller, Nov 11 2008]
Comments