id:A111309 - OEIS Search Results

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Absolute difference between the sum of the odd digits and the sum of the even digits of the n-th prime.

+0
2

2, 3, 5, 7, 2, 4, 8, 10, 1, 7, 4, 10, 3, 1, 3, 8, 14, 5, 1, 8, 10, 16, 5, 1, 16, 2, 4, 8, 10, 5, 6, 5, 11, 13, 6, 7, 13, 2, 2, 11, 17, 6, 11, 13, 17, 19, 0, 1, 3, 5, 4, 10, 5, 4, 10, 5, 1, 6, 12, 9, 7, 10, 10, 5, 7, 11, 7, 13, 6, 8, 11, 17, 4, 13, 19, 2, 4, 19, 3, 5, 6, 5, 0, 2, 8, 5, 1, 8, 9, 7, 3 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(9)=1 because the 9th prime is 23 and the absolute difference between 2 & 3 is 1.`
	MATHEMATICA	`f[n_] := (id = IntegerDigits[ Prime[n]]; Abs[(Plus @@ id) - 2Plus @@ Select[id, OddQ]]); Table[f[n], {n, 91}]`
	CROSSREFS	`Cf. A071650.` `Sequence in context: A074464 A074463 A038194 this_sequence A007605 A077765 A078400` `Adjacent sequences: A111306 A111307 A111308 this_sequence A111310 A111311 A111312`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com) and Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 02 2005`

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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