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A136100 Square each term in the sequence counting standard Young tableaux; cf. A117506. +0
1
1, 1, 1, 1, 4, 1, 1, 9, 4, 9, 1, 1, 16, 25, 36, 25, 16, 1, 1, 25, 81, 25, 100, 256, 25, 100, 81, 25, 1, 1, 36, 196, 196, 225, 1225, 441, 441, 400, 1225, 196, 225, 196, 36, 1 (list; graph; listen)
OFFSET

1,5

COMMENT

When viewed as an irregular table there are A000041 entries per row which sum to 1 2 6 24 120 720 ...

FORMULA

a(n) = A117506(n)*A117506(n)

EXAMPLE

Row five of A117506 is 1 4 5 6 5 4 1 so row five of the present triangle is 1 16 25 36 25 16 1

CROSSREFS

Cf. A000041 A000085 A000142 A007318 A008459 A059797 A117506.

Sequence in context: A100754 A055107 A128137 this_sequence A141905 A114188 A110511

Adjacent sequences: A136097 A136098 A136099 this_sequence A136101 A136102 A136103

KEYWORD

nonn,tabf

AUTHOR

Alford Arnold (Alford1940(AT)aol.com), Dec 27 2007

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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