a(n) = lcm(1..n) / ((n+1)(n+2)...(n+k)) where k is the largest number which gives an integral value.

A069491

a(n) = lcm(1..n) / ((n+1)(n+2)...(n+k)) where k is the largest number which gives an integral value.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =12a(4) =10a(5) =60a(6) =420a(7) =840a(8) =252a(9) =2520a(10) =2310a(11) =27720a(12) =1716a(13) =24024a(14) =360360a(15) =720720a(16) =680680a(17) =12252240a(18) =25194a(19) =503880a(20) =10581480a(21) =232792560a(22) =223092870a(23) =5354228880a(24) =1029659400a(25) =26771144400a(26) =2868336900a(27) =80313433200a(28) =77636318760

External references