a(n) = smallest positive even integer k such that k or one of its left substrings is divisible by any integer from {1..n}.
2, 2, 6, 12, 60, 60, 252, 504, 504, 504, 7260, 7260, 10296, 11760, 11760, 11760
1 seqfan posts
Fri Jun 4 14:10:54 CEST 2010 [seqfan] A169858 corrected, extended