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Search: id:A097437
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| A097437 |
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Value of C in y = x^2+9x+C such that y is prime for all x = 0 to 5. |
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+0
2
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| 31, 37, 61, 127, 241, 787, 2017, 2767, 5791, 7537, 9151, 9781, 10141, 15391, 19927, 33577, 36877, 41947, 42187, 42667, 57037, 74821, 78787, 92647, 102181, 115741, 135007, 139387, 142537, 143467, 157207, 159157, 160687, 161947, 176191, 180211
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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a(4) = 127: y = x^2+9x+127.
If x = 0; y = 0+0+127 = 127, which is prime.
If x = 1; y = 1+9+127 = 137, which is prime.
If x = 2; y = 4+18+127 = 149, which is prime.
If x = 3; y = 9+27+127 = 163, which is prime.
If x = 4; y = 16+36+127 = 179, which is prime.
If x = 5; y = 25+45+127 = 197, which is prime.
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CROSSREFS
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Sequence in context: A051267 A073521 A129998 this_sequence A156974 A082957 A067826
Adjacent sequences: A097434 A097435 A097436 this_sequence A097438 A097439 A097440
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KEYWORD
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nonn
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AUTHOR
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Ray G. Opao (1260(AT)email.com), Aug 22 2004
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