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Search: id:A065762
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| A065762 |
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a(n) = (sum of first n primes)^2 + sum of (squares of first n primes). |
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+0
1
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| 8, 38, 138, 376, 992, 2058, 4030, 6956, 11556, 19038, 28958, 43536, 63052, 87218, 118050, 158436, 210356, 271478, 347590, 438328, 542280, 667258, 812342, 983756, 1189396
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,500
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EXAMPLE
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a(4) = 376 because (2 + 3 + 5 + 7)^2 + (2^2 + 3^2 + 5^2 + 7^2) = 17^2 + (4 + 9 + 25 + 49) = 289 + 87 = 376.
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PROGRAM
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(PARI) { s=ss=0; for (n=1, 500, p=prime(n); s+=p; ss+=p^2; write("b065762.txt", n, " ", s^2 + ss) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 30 2009]
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CROSSREFS
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A065595
Sequence in context: A128246 A163832 A139798 this_sequence A034009 A038732 A038799
Adjacent sequences: A065759 A065760 A065761 this_sequence A065763 A065764 A065765
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KEYWORD
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easy,nonn,new
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AUTHOR
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Terrel Trotter, Jr. (ttrotter(AT)telesal.net), Dec 04 2001
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