1077300domain: NAppears in sequencesTriangle of coefficients, read by rows, where the n-th row forms the polynomial P(n,x) = {Sum_{k=1..n} 1/(k+x)}*{Product_{k=1..n} (k+x)}.at n=39A074246Number of (n+2) X 5 binary arrays avoiding patterns 001 and 101 in rows and columns.at n=15A202197