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A075892 Average of successive primes squared, (prime(n+1)^2+prime(n)^2)/2, n>=2. 1
17, 37, 85, 145, 229, 325, 445, 685, 901, 1165, 1525, 1765, 2029, 2509, 3145, 3601, 4105, 4765, 5185, 5785, 6565, 7405, 8665, 9805, 10405, 11029, 11665, 12325, 14449, 16645, 17965, 19045, 20761, 22501, 23725, 25609, 27229, 28909, 30985, 32401 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

FORMULA

a(n)=(prime(n+1)^2+prime(n)^2)/2, n>=2.

EXAMPLE

a(2)=17 because (prime(3)^2+prime(2)^2)/2=(5^2+3^2)/2=17.

CROSSREFS

Sequence in context: A200865 A093930 A048880 * A155143 A141886 A060429

Adjacent sequences:  A075889 A075890 A075891 * A075893 A075894 A075895

KEYWORD

easy,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Oct 17 2002

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Last modified February 14 13:08 EST 2012. Contains 205623 sequences.