135015domain: NAppears in sequencesNumbers k such that phi(k) = phi(k-2) - phi(k-1).at n=8A066232Number of 6 X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 6 X n array.at n=27A220036