611875domain: NAppears in sequencesa(n) = the smallest multiple of the n-th prime such that (a(n)+1) is divisible by both the (n-1)th prime and the (n+1)st prime.at n=22A143243Number of length 4 arrays x(i), i=1..4 with x(i) in i..i+n and no value appearing more than 2 times.at n=26A250353