id:A082144 - OEIS Search Results

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A subdiagonal of number array A082137.

+0
5

1, 4, 30, 224, 1680, 12672, 96096, 732160, 5601024, 42997760, 331082752, 2556051456, 19778969600, 153363087360, 1191302553600, 9268801044480, 72219408138240, 563445537177600, 4401135695953920, 34414895667609600 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=(2^(n-1)+0^n/2)C(2n+2, n)`
	EXAMPLE	`a(0)=(2^(-1)+(0^0)/2)C(2,0)=2*(1/2)=1 (use 0^0=1).`
	CROSSREFS	`Cf. A069723, A082143, A082145.` `Adjacent sequences: A082141 A082142 A082143 this_sequence A082145 A082146 A082147` `Sequence in context: A007905 A084976 A000313 this_sequence A137971 A052604 A038225`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 06 2003`

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Last modified October 11 09:12 EDT 2008. Contains 144832 sequences.

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