A160592 Indices of primes congruent to 7 modulo 12.
4, 8, 11, 14, 19, 22, 27, 31, 34, 36, 38, 46, 47, 48, 58, 61, 63, 67, 73, 75, 85, 90, 93, 95, 99, 101, 105, 111, 114, 115, 117, 125, 129, 131, 133, 138, 141, 143, 149, 153, 155, 157, 163, 167, 175, 177, 179, 181, 188, 193, 202, 207, 210, 213, 217, 222, 224, 229, 232
Offset: 1
Keywords
Examples
a(1) = 4 since the 4th prime, A000040(4) = 7, is the first one to be equal to 7 (mod 12). a(2) = 8 since the 8th prime, A000040(8) = 19, is the second one to be equal to 7 (mod 12).
Programs
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PARI
for( n=1,999, prime(n)%12==7 & print1(n","))
Comments