id:A070828 - OEIS Search Results

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Sum of prime factors of Catalan numbers A000108(n), n>=2, with n=0 and n=1 terms added.

+0
1

1, 1, 2, 5, 9, 12, 18, 27, 31, 43, 53, 58, 70, 73, 76, 99, 115, 123, 118, 148, 156, 186, 208, 212, 251, 252, 265, 309, 298, 312, 342, 395, 396, 397, 454, 472, 508, 562, 561, 570, 610, 612, 654, 663, 686, 752, 727 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(0) := 1=: a(2) for A000108(0)= 1 = A000108(1). Sometimes a(0)= 0 =a(1) is chosen instead.`
	CROSSREFS	`Cf. A001414 (for natural numbers), A064725 (for Fibonacci), A070827 (for Lucas).` `Sequence in context: A056549 A034806 A034307 this_sequence A112988 A139405 A104862` `Adjacent sequences: A070825 A070826 A070827 this_sequence A070829 A070830 A070831`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), May 10, 2002`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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