Slowest growing sequence of semiprimes having the semiprime-pairwise-average property: for any i,j, (a(i)+a(j))/2 is semiprime.
A114845
Slowest growing sequence of semiprimes having the semiprime-pairwise-average property: for any i,j, (a(i)+a(j))/2 is semiprime.
Terms
- a(0) =4a(1) =14a(2) =38a(3) =134a(4) =254a(5) =13238a(6) =252254a(7) =691958a(8) =952814a(9) =3316238a(10) =30364918838a(11) =210339665174a(12) =575167942574
External references
- oeis: A114845