A111883 - OEIS

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A111883

Unsigned row sums of triangle A111595 (normalized rescaled squared Hermite polynomials).

1, 1, 4, 16, 100, 676, 5776, 53824, 583696, 6864400, 90174016, 1274204416, 19642583104, 323196798016, 5714394630400, 107112895415296, 2135062451773696, 44858948563673344, 994634863541502976 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	FORMULA	`E.g.f.: exp(x/(1-x))/sqrt(1-x^2).` `a(n)=A000085(n)^2. - Michael Somos Aug 30 2005`
	PROG	`(PARI) a(n)=if(n<0, 0, n!polcoeff(exp(x/(1-x)+xO(x^n))/sqrt(1-x^2+xO(x^n)), n)) / Michael Somos Aug 30 2005 */`
	CROSSREFS	`Cf. A111882 (row sums of A111595).` `Sequence in context: A087296 A065731 A074187 * A094637 A203716 A136793` `Adjacent sequences: A111880 A111881 A111882 * A111884 A111885 A111886`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Aug 23 2005`

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Last modified February 14 16:05 EST 2012. Contains 205635 sequences.