121219domain: NAppears in sequencesExpansion of 1/((1-3x)(1-6x)(1-8x)(1-12x)).at n=4A028082Leading diagonal of triangle A119444.at n=24A119445Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..4 array extended with zeros and convolved with 1,-2,1.at n=21A222149