Least common multiple of 3*n+1 and 3*n-1.

Terms

a(0) =1a(1) =4a(2) =35a(3) =40a(4) =143a(5) =112a(6) =323a(7) =220a(8) =575a(9) =364a(10) =899a(11) =544a(12) =1295a(13) =760a(14) =1763a(15) =1012a(16) =2303a(17) =1300a(18) =2915a(19) =1624a(20) =3599a(21) =1984a(22) =4355a(23) =2380a(24) =5183a(25) =2812a(26) =6083a(27) =3280a(28) =7055a(29) =3784