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A227559
Number of partitions of n into distinct parts with boundary size 2.
3
1, 1, 2, 3, 3, 3, 5, 5, 5, 6, 6, 7, 9, 7, 8, 10, 9, 10, 12, 11, 11, 12, 13, 13, 15, 14, 14, 17, 15, 15, 18, 17, 19, 19, 18, 19, 21, 20, 20, 23, 21, 22, 26, 23, 23, 24, 25, 26, 27, 26, 26, 29, 29, 28, 30, 29, 29, 32, 30, 31, 35, 31, 34, 35, 33, 34, 36, 37, 35
OFFSET
3,3
COMMENTS
The boundary size is the number of parts having fewer than two neighbors.
LINKS
CROSSREFS
Column k=2 of A227345, A227551.
Sequence in context: A087418 A087731 A308172 * A234968 A141784 A234337
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jul 16 2013
STATUS
approved