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A027207
Self-convolution of row n of array T given by A026725.
1
1, 2, 6, 26, 91, 414, 1519, 6980, 26176, 120596, 457880, 2110422, 8076044, 37211408, 143165518, 659264978, 2546261659, 11717539646, 45387607779, 208729977124, 810316893827
OFFSET
0,2
MAPLE
A027207 := proc(n)
add( A026725(n, k)*A026725(n, n-k), k=0..n) ;
end proc: # R. J. Mathar, Oct 21 2019
CROSSREFS
Sequence in context: A317867 A092438 A240296 * A027231 A083845 A027239
KEYWORD
nonn
STATUS
approved