331357domain: NAppears in sequencesNumber of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x<R, y<R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=24A212749Numbers that are partial sums of the reverses of the sequence of primes and are reverses of primes.at n=21A381245