94798domain: NAppears in sequencesNumbers n such that 57*2^n-1 is prime.at n=36A050554Number of nX3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.at n=11A207264Riordan array (1/(1-3*x), (1-3*x-sqrt(1-6*x+5*x^2))/(2*x)).at n=48A236420