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A140511 a(n) = ((prime(n))^2 + prime(n+1))/2. 1
7, 16, 30, 67, 93, 154, 192, 279, 436, 499, 705, 862, 948, 1131, 1434, 1771, 1894, 2280, 2557, 2704, 3162, 3489, 4009, 4755, 5152, 5358, 5779, 5997, 6448, 8130, 8649, 9454, 9735, 11176, 11479, 12406, 13368, 14031, 15054, 16111, 16476, 18337, 18723, 19504 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 2..1000

MATHEMATICA

(#[[1]]^2+#[[2]])/2&/@Partition[Prime[Range[2, 50]], 2, 1] (* Harvey P. Dale, Oct 15 2015 *)

PROG

(PARI) for(n=2, 50, print1(((prime(n))^2 + prime(n+1))/2, ", ")) \\ G. C. Greubel, Feb 23 2017

CROSSREFS

Sequence in context: A180724 A212866 A234717 * A286119 A286085 A121470

Adjacent sequences:  A140508 A140509 A140510 * A140512 A140513 A140514

KEYWORD

nonn

AUTHOR

Alexander R. Povolotsky, Jun 30 2008

EXTENSIONS

More terms from Harvey P. Dale, Oct 15 2015

STATUS

approved

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Last modified October 19 22:05 EDT 2021. Contains 348095 sequences. (Running on oeis4.)