A110801
Numbers n such that 12n + 1 is prime.
Original entry on oeis.org
1, 3, 5, 6, 8, 9, 13, 15, 16, 19, 20, 23, 26, 28, 29, 31, 33, 34, 35, 36, 38, 45, 48, 50, 51, 55, 56, 59, 61, 63, 64, 69, 71, 73, 78, 83, 84, 85, 86, 89, 91, 93, 94, 96, 100, 101, 103, 104, 108, 110, 115, 119, 121, 124, 129, 133, 134, 135, 138, 139, 141, 145, 146, 148
Offset: 1
If n=96 then 12*n + 1 = 1153 (prime).
A167055
Numbers k such that 12*k + 5 is prime.
Original entry on oeis.org
0, 1, 2, 3, 4, 7, 8, 9, 11, 12, 14, 16, 19, 21, 22, 23, 24, 26, 29, 32, 33, 37, 38, 42, 43, 46, 47, 49, 51, 53, 54, 56, 58, 63, 64, 66, 67, 68, 71, 73, 77, 78, 79, 81, 84, 87, 88, 91, 92, 98, 99, 101, 102, 106, 107, 108, 113, 114, 117, 119, 123, 124, 129, 133, 134, 136, 141
Offset: 1
2 is in the sequence since 12*2+5 = 29 is prime.
A167056
Numbers k such that 12*k + 7 is prime.
Original entry on oeis.org
0, 1, 2, 3, 5, 6, 8, 10, 11, 12, 13, 16, 17, 18, 22, 23, 25, 27, 30, 31, 36, 38, 40, 41, 43, 45, 47, 50, 51, 52, 53, 57, 60, 61, 62, 65, 67, 68, 71, 73, 75, 76, 80, 82, 86, 87, 88, 90, 93, 97, 102, 106, 107, 108, 110, 116, 118, 120, 121, 122, 123, 127, 128, 130, 131, 135, 138
Offset: 1
2 is in the sequence since 12*2+7 = 31 is prime.
A166570
Numbers n such that 12*n+11 is not prime.
Original entry on oeis.org
2, 7, 9, 11, 12, 16, 17, 22, 23, 24, 26, 27, 30, 32, 33, 37, 42, 43, 44, 45, 47, 50, 51, 52, 55, 57, 58, 60, 62, 63, 64, 65, 66, 67, 70, 72, 74, 76, 77, 79, 82, 83, 86, 87, 88, 89, 92, 93, 94, 97, 99, 100, 102, 103, 105, 107, 110, 111, 112, 114, 115, 116, 117, 121, 122
Offset: 1
Distribution of the terms in the following triangular array:
*;
*,*;
*,2,*;
*,*,*,*;
*,*,*,*,*;
*,*,*,*,11,*;
*,*,*,*,*,*,*;
*,*,9,*,*,*,*,*;
*,7,*,*,*,*,*,26,*;
*,*,*,*,*,*,*,*,*,*;
*,*,*,*,*,24,*,*,*,*,*;
*,*,*,*,22,*,*,*,*,*,47,*; etc.
where * marks the non-integer values of (2*h*k + k + h - 5)/6 with h >= k >= 1. -
Showing 1-4 of 4 results.
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