A058374 - OEIS

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A058374

a(1) = 1; a(n+1) = sum{k=1 to n}[a(k)^a(n+1-k)].

1, 1, 2, 4, 8, 18, 60, 656, 332818, 1152921573343542980 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	EXAMPLE	`a(7) = 1^18 + 1^8 + 2^4 + 4^2 + 8^1 + 18^1 = 1 + 1 + 16 + 16 + 8 + 18 = 60.`
	CROSSREFS	`Sequence in context: A135422 A116723 A180206 * A007881 A049960 A018306` `Adjacent sequences: A058371 A058372 A058373 * A058375 A058376 A058377`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet Dec 18 2000`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.