Golden semiprimes: a(n)=p*q and abs(p*phi-q)<1, where phi = golden ratio = (1+sqrt(5))/2.
A108540
Golden semiprimes: a(n)=p*q and abs(p*phi-q)<1, where phi = golden ratio = (1+sqrt(5))/2.
Terms
- a(0) =6a(1) =15a(2) =77a(3) =187a(4) =589a(5) =851a(6) =1363a(7) =2183a(8) =2747a(9) =7303a(10) =10033a(11) =15229a(12) =16463a(13) =17201a(14) =18511a(15) =27641a(16) =35909a(17) =42869a(18) =45257a(19) =53033a(20) =60409a(21) =83309a(22) =93749a(23) =118969a(24) =124373a(25) =129331a(26) =156433a(27) =201563a(28) =217631a(29) =232327
External references
- oeis: A108540