A124014 - OEIS

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A124014

a(n) = the sum of the terms in the n-th antidiagonal of A124975.

1, 2, 4, 8, 22, 138, 4952, 7139100, 21413761011002, 226852422426283857888381406, 25729877378683265674254171054115441638555802828935420, 331013294649039928470435095480789359495537067296709574238913964352421152489181126832086450397574900411936 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	MATHEMATICA	`t[m_, n_] := t[m, n] = If[m == 1 \|\| n == 1, 1, Product[t[k, n], {k, m - 1}] + Product[t[m, j], {j, n - 1}]]; Plus @@@ Table[t[d + 1 - j, j], {d, 12}, {j, d}] (Chandler)`
	CROSSREFS	`Cf. A124975.` `Sequence in context: A158324 A002075 A122623 * A100827 A034906 A018323` `Adjacent sequences: A124011 A124012 A124013 * A124015 A124016 A124017`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet Nov 23 2006`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 11 2006`

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Last modified February 15 08:20 EST 2012. Contains 205729 sequences.