a(1) = 1, a(n) is the smallest number such that the concatenation a(1)a(2)...a(n) is divisible by lcm(1..n).

A336399

a(1) = 1, a(n) is the smallest number such that the concatenation a(1)a(2)...a(n) is divisible by lcm(1..n).

Terms

    a(0) =1a(1) =0a(2) =2a(3) =0a(4) =0a(5) =0a(6) =360a(7) =0a(8) =1680a(9) =0a(10) =35280a(11) =0a(12) =332640a(13) =0a(14) =0a(15) =0a(16) =8648640a(17) =0a(18) =306306000a(19) =0a(20) =0a(21) =0a(22) =232792560a(23) =0a(24) =0a(25) =0a(26) =26771144400a(27) =0a(28) =481880599200a(29) =0

External references