id:A115152 - OEIS Search Results

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Fifth diagonal (M=5) sequence of triangle A113647, called Y(2,1).

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1, 63, 705, 6207, 50113, 389183, 2965441, 22380607, 168132545, 1260716095, 9450356673, 70882689087, 532259536833, 4002476458047, 30145737916353, 227429364793407, 1718693633458113, 13009919057854527, 98641252341252033 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)= A113647(n+4, n+1), n>=0.` `G.f.: ((-2 + 12x - 8x^2 + x^4) + 2(1-8x+12x^2)c(2x))/((x^4)(1+x)), with the o.g.f. c(x):=(1-sqrt(1-4x))/(2x) of A000108 (Catalan numbers).`
	CROSSREFS	`Sequence in context: A022522 A090028 A086578 this_sequence A069091 A123866 A024004` `Adjacent sequences: A115149 A115150 A115151 this_sequence A115153 A115154 A115155`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Jan 13 2006`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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