A087180 Number partition numbers <= P(n) of the form 3*k (P=A000041).

0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 5, 6, 7, 7, 7, 8, 9, 10, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14, 15, 15, 16, 16, 16, 16, 17, 18, 19, 19, 20, 20, 20, 21, 21, 22, 22, 22, 23, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 28, 28, 28, 28, 28, 29, 29, 30, 31, 31, 31, 31, 32

Offset

0,8

Comments

a(n) + A087181(n) + A087182(n) = n + 1.

Links

Table of n, a(n) for n=0..75.

Eric Weisstein's World of Mathematics, Partition Function

Eric Weisstein's World of Mathematics, Partition Function P Congruences

Crossrefs

Cf. A087183, A068907, A087177, A071754.

Sequence in context: A270826 A363069 A003002 * A029121 A161205 A340619

Adjacent sequences: A087177 A087178 A087179 * A087181 A087182 A087183

Keyword

nonn

Author

Reinhard Zumkeller, Aug 23 2003

Status

approved