a(n) is the first common term in column n of tables A225630 and A225640, when scanned from the top to bottom.

A226055

a(n) is the first common term in column n of tables A225630 and A225640, when scanned from the top to bottom.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =30a(6) =6a(7) =84a(8) =120a(9) =180a(10) =210a(11) =4620a(12) =4620a(13) =780a(14) =360360a(15) =360360a(16) =240240a(17) =92820a(18) =12252240a(19) =175560a(20) =58198140a(21) =116396280a(22) =360360a(23) =753480a(24) =2677114440a(25) =13385572200a(26) =26771144400a(27) =40156716600a(28) =2677114440a(29) =13665960

External references