A143761 - OEIS

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A143761

a(n+1) = a(n)^2 - n*a(n) + n^2, a(1) = 1.

1, 1, 3, 9, 61, 3441, 11819871, 139709267717593, 19518679486184955909459972969, 380978848884417414427615903969045678210740619589070918321 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`Let f(n+1,k) = f(n,k)^2 + knf(n,k) + n^2, f(1, k) = 1:` `f(n,0)=A143760(n), f(n,-1)=a(n), f(n,+1)=A143762(n),` `f(n,-2)=A143763(n), f(n,+2)=A143764(n), f(n,-3)=A143765(n),` `f(n,+3)=A143766(n).`
	LINKS	`Index entries for sequences of form a(n+1)=a(n)^2 + ... [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 11 2008]`
	CROSSREFS	`Sequence in context: A140812 A202210 A018513 * A064703 A085435 A121696` `Adjacent sequences: A143758 A143759 A143760 * A143762 A143763 A143764`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 01 2008`

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Last modified February 14 23:16 EST 2012. Contains 205687 sequences.