A116375 Number of partitions of n into parts with digital root = 5.
0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 2, 1, 1, 0, 1, 2, 1, 1, 0, 2, 2, 1, 1, 1, 3, 2, 1, 1, 3, 3, 2, 1, 2, 4, 3, 2, 1, 4, 5, 3, 2, 2, 6, 5, 3, 2, 5, 7, 5, 3, 3, 8, 8, 5, 3, 6, 10, 8, 5, 4, 10, 11, 8, 5, 8, 13, 12, 8, 6, 13, 15, 12, 8, 10, 18, 16, 12, 9, 17, 21, 17
Offset: 1
Examples
a(42) = #{32+5+5, 23+14+5, 14+14+14} = 3.
Links
- Eric Weisstein's World of Mathematics, Digital Root
Crossrefs
Cf. A010888.
A147706. [From Reinhard Zumkeller, Nov 11 2008]
Comments