A300056 - OEIS

A300056

Number of normal standard domino tableaux whose shape is the integer partition with Heinz number n.

1, 0, 1, 1, 0, 0, 1, 0, 2, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 3, 1, 0, 0, 3, 0, 3, 2, 1, 0, 0, 0, 0, 1, 0, 3, 1, 0, 4, 2, 0, 0, 1, 0, 0, 1, 0, 1, 6, 0, 0, 3, 1, 0, 4, 0, 5, 0, 0, 0, 1, 1, 8, 1, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 6, 4, 0, 0, 1, 0, 6, 1, 0, 6, 5, 0, 6, 3, 1, 2, 10, 0, 0, 1, 0, 0, 0, 0, 0, 8, 1, 0, 0, 0, 0, 0

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OFFSET

1,9

COMMENTS

A generalized Young tableau of shape y is an array obtained by replacing the dots in the Ferrers diagram of y with positive integers. A tableau is normal if its entries span an initial interval of positive integers. A standard domino tableau is a generalized Young tableau in which all rows and columns are weakly increasing and all regions are dominos. The Heinz number of an integer partition (y_1,...,y_k) is prime(y_1)*...*prime(y_k).

LINKS

Table of n, a(n) for n=1..106.

EXAMPLE

The a(75) = 6 tableaux:

1 2 4 1 2 3 1 2 2 1 1 4 1 1 4 1 1 3

1 2 4 1 2 3 1 3 3 2 3 4 2 2 4 2 2 3

3 3 4 4 4 4 2 3 3 3 4 4

CROSSREFS

Cf. A000085, A000712, A000898, A001222, A004003, A056239, A099390, A112798, A122111, A138178, A153452, A238690, A296150, A296188, A297388, A299926, A300060, A300061.

Sequence in context: A153659 A305565 A300060 * A321758 A366851 A357525

Adjacent sequences: A300053 A300054 A300055 * A300057 A300058 A300059

KEYWORD

nonn

AUTHOR

Gus Wiseman, Feb 23 2018

STATUS

approved