37552domain: NAppears in sequencesNumbers k such that k^4 + 1, (k+2)^4 + 1 and (k+4)^4 + 1 are all primes.at n=29A073476Number of length n 1..(1+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7.at n=30A258624