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A180333 Triangle in which row n has n semiprimes such that (p+1)(q+1) is the same for each semiprime pq and (p+1)(q+1) is as small as possible. 2

%I #9 Oct 19 2013 10:45:26

%S 4,14,15,46,51,55,94,115,119,121,382,497,517,527,529,718,807,895,979,

%T 1003,1007,1438,1795,1883,1969,2033,2047,2059,958,1077,1195,1253,1343,

%U 1349,1357,1363,5758,7195,7909,8143,8189,8257,8339,8413,8453,13438

%N Triangle in which row n has n semiprimes such that (p+1)(q+1) is the same for each semiprime pq and (p+1)(q+1) is as small as possible.

%C This sequence was inspired by A180328, but there the semiprime pq is assumed to consist of distinct primes p and q. The value of (p+1)(q+1) for each row is in A180334.

%H T. D. Noe and Zak Seidov, <a href="/A180333/b180333.txt">Rows n=1..36 of triangle, flattened</a>

%K tabl,nonn

%O 1,1

%A _Zak Seidov_ and _T. D. Noe_, Sep 08 2010

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)