a(n) is the minimal k such that nextprime(2k+1) - 2k = prime(n) where nextprime(n) is least prime > n.

A229512

a(n) is the minimal k such that nextprime(2k+1) - 2k = prime(n) where nextprime(n) is least prime > n.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =11a(4) =58a(5) =57a(6) =262a(7) =261a(8) =564a(9) =666a(10) =665a(11) =4775a(12) =7843a(13) =7842a(14) =9807a(15) =9804a(16) =15705a(17) =15704a(18) =15701a(19) =15699a(20) =15698a(21) =77964a(22) =77962a(23) =180330a(24) =180326a(25) =185136a(26) =185135a(27) =185133a(28) =185132a(29) =185130

External references