A087181 Number partition numbers <= P(n) of the form 3*k+1 (P=A000041).

1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 9, 9, 9, 9, 9, 9, 10, 10, 11, 12, 12, 12, 12, 12, 12, 12, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 16, 17, 17, 17, 17, 18, 18, 18, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 21, 22, 22, 22, 22, 23, 23, 23

Offset

0,2

Comments

A087180(n) + a(n) + A087182(n) = n + 1.

Links

Table of n, a(n) for n=0..79.

Eric Weisstein's World of Mathematics, Partition Function

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

Crossrefs

Cf. A087184, A068907, A087177, A071754.

Sequence in context: A291309 A280472 A068063 * A034973 A316626 A269734

Adjacent sequences: A087178 A087179 A087180 * A087182 A087183 A087184

Keyword

nonn

Author

Reinhard Zumkeller, Aug 23 2003

Status

approved