256620domain: NAppears in sequencesTriangle of the square of the normalized, unsigned Stirling matrix of the first kind.at n=15A027477First column of triangle A027477, constructed from the Stirling numbers of the first kind.at n=5A027486Numbers k such that 2*k-1, 4*k-1, 6*k-1, 8*k-1 and 10*k-1 are primes.at n=16A124488