Denominator(Bernoulli(n-1) + 1/n)=66, where n runs through the primes.

Terms

a(0) =71a(1) =131a(2) =191a(3) =251a(4) =311a(5) =431a(6) =971a(7) =1031a(8) =1091a(9) =1511a(10) =1571a(11) =1811a(12) =1931a(13) =2111a(14) =2351a(15) =2411a(16) =2711a(17) =3371a(18) =3491a(19) =3671a(20) =4091a(21) =4211a(22) =4391a(23) =4871a(24) =5051a(25) =5231a(26) =5351a(27) =5471a(28) =5711a(29) =6011