login
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, 1, 49, 400, 784, 196, 441, 4096, 4900, 3136, 1764, 1225, 8100, 3136, 4900, 196
OFFSET
0,6
COMMENTS
When viewed as an irregular table there are A000041 entries per row which sum to 1, 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.
KEYWORD
nonn,tabf
AUTHOR
Alford Arnold, Dec 27 2007
EXTENSIONS
More terms from Alois P. Heinz, Nov 05 2015
STATUS
approved