id:A154563 - OEIS Search Results

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Averages of twin prime pairs of A074378.

+0
2

18, 60, 138, 150, 1278, 1620, 2730, 4128, 6360, 11718, 13398, 17490, 20808, 23028, 28308, 29670, 51870, 61380, 69828, 73848, 78540, 92568, 97500, 115770, 138570, 166668, 176610, 193380, 200928, 258318, 304980, 430008, 500910, 518760, 536190 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`18-1=17;18+1=19,...`
	MATHEMATICA	`q=2; lst={}; s=0; Do[s+=n/q; If[Floor[s]==s, If[PrimeQ[s-1]&&PrimeQ[s+1], AppendTo[lst, s]]], {n, 0, 8!}]; lst`
	CROSSREFS	`Sequence in context: A056448 A056438 A105521 this_sequence A090073 A016728 A165029` `Adjacent sequences: A154560 A154561 A154562 this_sequence A154564 A154565 A154566`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 12 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research