id:A136050 - OEIS Search Results

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Sum of digits of product of twin primes A037074.

+0
2

8, 8, 8, 26, 17, 26, 17, 8, 17, 17, 26, 26, 26, 17, 26, 35, 35, 26, 26, 8, 35, 26, 17, 26, 35, 44, 26, 17, 35, 35, 35, 35, 26, 35, 26, 17, 26, 26, 26, 17, 35, 26, 35, 26, 35, 26, 17, 26, 17, 35, 35, 26, 26, 35, 35, 26, 35, 26, 35, 26, 26, 26, 35, 26, 44, 35, 26, 26, 35, 44, 35 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`a = {}; Do[If[PrimeQ[6n - 1] && PrimeQ[6n + 1], c = IntegerDigits[36n^2 - 1]; b = Sum[c[[s]], {s, 1, Length[c]}]; AppendTo[a, b]], {n, 1, 20000}]; a`
	CROSSREFS	`Cf. A002822, A037074, A136017.` `Adjacent sequences: A136047 A136048 A136049 this_sequence A136051 A136052 A136053` `Sequence in context: A088841 A023415 A134314 this_sequence A077106 A121309 A020785`
	KEYWORD	`nonn,base`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Dec 12 2007`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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