Least common multiple of 7*n+1 and 7*n-1.

Terms

a(0) =1a(1) =24a(2) =195a(3) =220a(4) =783a(5) =612a(6) =1763a(7) =1200a(8) =3135a(9) =1984a(10) =4899a(11) =2964a(12) =7055a(13) =4140a(14) =9603a(15) =5512a(16) =12543a(17) =7080a(18) =15875a(19) =8844a(20) =19599a(21) =10804a(22) =23715a(23) =12960a(24) =28223a(25) =15312a(26) =33123a(27) =17860a(28) =38415a(29) =20604