First of four consecutive primes p,q,r,s such that p+q+r+s is divisible by A001414(q+r).

Terms

a(0) =11a(1) =19a(2) =23a(3) =37a(4) =97a(5) =109a(6) =137a(7) =263a(8) =277a(9) =307a(10) =401a(11) =409a(12) =617a(13) =757a(14) =877a(15) =1039a(16) =1187a(17) =1321a(18) =1481a(19) =1567a(20) =1871a(21) =2179a(22) =2333a(23) =2543a(24) =2861a(25) =3371a(26) =3617a(27) =3697a(28) =4649a(29) =4783