Primes p dividing every A167859(m) from m=(p-1)/2 to m=(p-1).

Terms

a(0) =7a(1) =47a(2) =191a(3) =383a(4) =439a(5) =1151a(6) =1399a(7) =2351a(8) =2879a(9) =3119a(10) =3511a(11) =3559a(12) =4127a(13) =5087a(14) =5431a(15) =6911a(16) =8887a(17) =9127a(18) =9791a(19) =9887a(20) =12391a(21) =13151a(22) =14407a(23) =15551a(24) =16607a(25) =19543a(26) =20399a(27) =21031a(28) =21319a(29) =21839