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A166457
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Numbers n such that n*100+1 is prime.
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0
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1, 4, 6, 7, 12, 13, 16, 18, 19, 28, 30, 33, 37, 40, 42, 48, 51, 55, 57, 58, 61, 63, 67, 70, 79, 81, 85, 90, 96, 99, 103, 105, 106, 117, 118, 121, 123, 124, 126, 130, 139, 144, 151, 154, 156, 159, 160, 163, 169, 174, 183, 184, 187, 190, 193, 195, 198, 201, 202, 210, 211
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| a(1)=1 (1*100+1=prime); a(2)=4 (4*100+1=prime).
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MAPLE
| a := proc (n) if isprime(100*n+1) = true then n else end if end proc: seq(a(n), n = 1 .. 250); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Nov 01 2009]
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CROSSREFS
| Cf. A000040, A086304.
Sequence in context: A102143 A056853 A024566 * A047506 A102136 A102142
Adjacent sequences: A166454 A166455 A166456 * A166458 A166459 A166460
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Oct 14 2009
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EXTENSIONS
| Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Nov 01 2009
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