id:A104251 - OEIS Search Results

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Sum of nonprime digits of n-th prime.

+0
4

0, 0, 0, 0, 2, 1, 1, 10, 0, 9, 1, 0, 5, 4, 4, 0, 9, 7, 6, 1, 0, 9, 8, 17, 9, 2, 1, 1, 10, 2, 1, 2, 1, 10, 14, 2, 1, 7, 7, 1, 10, 10, 11, 10, 10, 19, 2, 0, 0, 9, 0, 9, 5, 1, 0, 6, 15, 1, 0, 9, 8, 9, 0, 2, 1, 1, 1, 0, 4, 13, 0, 9, 6, 0, 9, 8, 17, 9, 5, 13, 14, 5, 5, 4, 13, 8, 17, 4, 11, 10, 10, 13, 12 (list; graph; listen)

	OFFSET	`1,5`
	FORMULA	`a(n)=A007605(n)-A104250(n)`
	EXAMPLE	`a(6)=1 because sum of composie (nonprime) digits of Prime[6]=13 is 1.`
	CROSSREFS	`Sum of prime digits (2, 3, 5, 7) of n-th prime: A104250. Primes: A000040, sum of digits of primes: A007605.` `Sequence in context: A119731 A155718 A054768 this_sequence A153731 A154989 A064307` `Adjacent sequences: A104248 A104249 A104250 this_sequence A104252 A104253 A104254`
	KEYWORD	`nonn,base`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Feb 26 2005`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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