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Search: id:A145202
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| A145202 |
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Primes of form 4*n^2 + 4*n + 653. |
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+0
1
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| 653, 661, 677, 701, 733, 773, 821, 877, 941, 1013, 1093, 1181, 1277, 1381, 1493, 1613, 1741, 1877, 2333, 2677, 2861, 3253, 3461, 3677, 4133, 4373, 4621, 4877, 5413, 5693, 5981, 6277, 6581, 7213, 7541, 7877, 8221, 8573, 8933, 9677, 10061, 10453, 10853
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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First 18 terms are the values of n^2 + 4*n + 653 for n from 0 through 17, next terms are the values for n = 20, 22, 23, 25, 26, 27, 29, 30, 31, 32, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50.
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LINKS
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Eric Weisstein's World of Mathematics, Prime-Generating Polynomial
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EXAMPLE
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a(18) = 4*17^2 + 4*17 + 653 = 1877.
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PROGRAM
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(PARI) {for(n=0, 50, if(isprime(p=4*n^2+4*n+653), print1(p, ", ")))}
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CROSSREFS
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Cf. A005846 (primes of form n^2 + n + 41), A145125.
Sequence in context: A089673 A104823 A145125 this_sequence A060520 A065759 A088894
Adjacent sequences: A145199 A145200 A145201 this_sequence A145203 A145204 A145205
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KEYWORD
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nonn
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AUTHOR
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Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Oct 04 2008
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