id:A069704 - OEIS Search Results

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Let M_2n be the 2n X 2n matrix M_(i,j)=C(2i,j)-C(2j,i) where C(k,l) denotes the binomial coefficients; then a(n)=det(M_2n).

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9, 2401, 7139584, 7429060864, 8768304271322176, 55287838983612748529926144, 28712457542131501655125523112656896, 597353290725130889841630014909751870078582784 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`det(M_{2n+1})=0`
	CROSSREFS	`Cf. A005249, A060739, A067689.` `Sequence in context: A162091 A013827 A058428 this_sequence A033997 A068729 A159775` `Adjacent sequences: A069701 A069702 A069703 this_sequence A069705 A069706 A069707`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 21 2002`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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