Values of n such that 90n+11, 90n+13, 90n+17, 90n+19 are all primes.

Terms

a(0) =0a(1) =1a(2) =2a(3) =9a(4) =23a(5) =36a(6) =210a(7) =281a(8) =387a(9) =772a(10) =919a(11) =1087a(12) =1505a(13) =1841a(14) =2165a(15) =2415a(16) =2667a(17) =2751a(18) =2865a(19) =2963a(20) =3067a(21) =3270a(22) =3788a(23) =3936a(24) =4417a(25) =4468a(26) =4475a(27) =4578a(28) =4656a(29) =4676