a(n) = least member of A006881 whose difference from the following one equals n, or 0 if no such semiprime exists.
A140784
a(n) = least member of A006881 whose difference from the following one equals n, or 0 if no such semiprime exists.
Terms
- a(0) =14a(1) =55a(2) =35a(3) =6a(4) =46a(5) =15a(6) =26a(7) =437a(8) =146a(9) =237a(10) =95a(11) =1082a(12) =818a(13) =597a(14) =1603a(15) =2705a(16) =2078a(17) =4511a(18) =1418a(19) =2681a(20) =14545a(21) =13863a(22) =37551a(23) =6559a(24) =16053a(25) =55805a(26) =26707a(27) =17965a(28) =308918a(29) =32777
External references
- oeis: A140784