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A186397
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Numbers k such that there are 5 primes between 100*k and 100*k + 99.
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1
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188, 273, 377, 403, 438, 506, 598, 605, 732, 758, 790, 800, 866, 885, 916, 936, 972, 981, 1031, 1032, 1060, 1074, 1075, 1086, 1103, 1128, 1136, 1193, 1194, 1204, 1218, 1240, 1248, 1265, 1280, 1287, 1293, 1298, 1390, 1400
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OFFSET
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1,1
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COMMENTS
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There are 225044 possible prime patterns for centuries having 5 primes. - Tim Johannes Ohrtmann, Aug 27 2015
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LINKS
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EXAMPLE
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188 is in this sequence because there are 5 primes between 18800 and 18899 (18803, 18839, 18859, 18869 and 18899).
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PROG
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(PARI) for(n=1, 1e6, if(sum(k=100*n, 100*(n+1), ispseudoprime(k))==5, print1(n", "))); \\ Charles R Greathouse IV, Feb 21 2011
(PARI) N=100; s=0; forprime(p=2, 1e6, if(p>N, if(s==5, print1((N\100)-1, ", ")); s=1; N=100*(p\100+1), s++)) \\ Charles R Greathouse IV, Feb 21 2011
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CROSSREFS
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Cf. A038822 (number of primes between 100n and 100n+99), A186311 (first occurrences).
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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