1167566400domain: NAppears in sequencesa(n) = (n+2) * (2n+1) * (2n-1)! / (n-1)!.at n=7A002691Number of permutations of 1..n with the sequence of sums of 8 adjacent elements having exactly 1 maximum.at n=6A179734Series reversion of (1 - t*x)*log(1 + x) with respect to x.at n=43A198204