a(n) is the initial member of the least pair of prime quadruples (of the form p, p+2, p+6, p+8) with a difference of 30*n, with no other prime quadruple between the pair.
A213904
a(n) is the initial member of the least pair of prime quadruples (of the form p, p+2, p+6, p+8) with a difference of 30*n, with no other prime quadruple between the pair.
Terms
- a(0) =1006301a(1) =0a(2) =11a(3) =1022381a(4) =0a(5) =3512051a(6) =1871a(7) =632081a(8) =0a(9) =1121831a(10) =15731a(11) =0a(12) =1481a(13) =1155611a(14) =1068251a(15) =0a(16) =18911a(17) =284741a(18) =0a(19) =12390011a(20) =191a(21) =821a(22) =0a(23) =3837131a(24) =875261a(25) =0a(26) =854921a(27) =10865291a(28) =18041a(29) =0
External references
- oeis: A213904