A227562 - OEIS

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A227562

Number of partitions of n into distinct parts with boundary size 5.

3

1, 2, 3, 5, 8, 11, 17, 24, 31, 43, 54, 67, 86, 108, 129, 160, 192, 224, 268, 315, 360, 424, 487, 556, 637, 723, 810, 921, 1029, 1141, 1285, 1426, 1568, 1746, 1920, 2102, 2314, 2529, 2748, 3013, 3269, 3533, 3848, 4164, 4481, 4840, 5214, 5590, 6016, 6448, 6882

(list; graph; refs; listen; history; text; internal format)

OFFSET

19,2

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 = 19..1000

CROSSREFS

Column k=5 of A227345, A227551.

Sequence in context: A060677 A131787 A091498 * A370729 A000511 A263710

Adjacent sequences: A227559 A227560 A227561 * A227563 A227564 A227565

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 16 2013

STATUS

approved