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Rearrangement of positive integers according to parity of (prime(n)-1)/2 (see comments).

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	OFFSET	`1,2`
	COMMENT	`If (prime(n+1)-1)/2 is even/odd then a(n) is the next even/odd number.`
	MATHEMATICA	`bb={}; od=-1; ev=0; Do[If[EvenQ[(Prime[i]-1)/2], ev=ev+2; bb=Append[bb, ev], od=od+2; bb=Append[bb, od]], {i, 2, 200}]; bb`
	CROSSREFS	`Cf. A105364.` `Sequence in context: A131141 A130981 A074145 this_sequence A123917 A154444 A154443` `Adjacent sequences: A105360 A105361 A105362 this_sequence A105364 A105365 A105366`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Apr 01 2005`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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