Smallest k > 2 such that 2|k, 3|k+1, 4|k+2,..., n|k+n-2.

Terms

a(0) =4a(1) =8a(2) =14a(3) =62a(4) =62a(5) =422a(6) =842a(7) =2522a(8) =2522a(9) =27722a(10) =27722a(11) =360362a(12) =360362a(13) =360362a(14) =720722a(15) =12252242a(16) =12252242a(17) =232792562a(18) =232792562a(19) =232792562a(20) =232792562a(21) =5354228882a(22) =5354228882a(23) =26771144402a(24) =26771144402a(25) =80313433202a(26) =80313433202