A227560 Number of partitions of n into distinct parts with boundary size 3.

1, 2, 2, 4, 6, 7, 10, 11, 13, 18, 20, 21, 27, 29, 32, 37, 42, 45, 49, 54, 58, 65, 70, 72, 82, 87, 90, 98, 103, 111, 119, 124, 130, 139, 147, 151, 163, 169, 174, 187, 196, 203, 211, 219, 229, 240, 250, 256, 268, 279, 288, 300, 311, 318, 333, 342, 350, 368, 376

Offset

7,2

Comments

The boundary size is the number of parts having fewer than two neighbors.

Links

Alois P. Heinz, Table of n, a(n) for n = 7..1000

Crossrefs

Column k=3 of A227345, A227551.

Sequence in context: A053045 A152424 A145804 * A046639 A178702 A265992

Adjacent sequences: A227557 A227558 A227559 * A227561 A227562 A227563

Keyword

nonn

Author

Alois P. Heinz, Jul 16 2013

Status

approved