a(n) is the smallest nonnegative integer such that a(n)! contains a string of exactly n consecutive 0's, not including trailing 0's.

A252652

a(n) is the smallest nonnegative integer such that a(n)! contains a string of exactly n consecutive 0's, not including trailing 0's.

Terms

    a(0) =0a(1) =7a(2) =12a(3) =22a(4) =107a(5) =264a(6) =812a(7) =4919a(8) =12154a(9) =24612a(10) =75705a(11) =101805a(12) =236441a(13) =1946174

External references