807630domain: NAppears in sequencesNumber of length n+4 0..5 arrays with no pair in any consecutive five terms totalling exactly 5.at n=5A246734Number of length 6+4 0..n arrays with no pair in any consecutive five terms totalling exactly n.at n=4A246743Starts of runs of 4 consecutive Niven numbers in base 2 (A049445).at n=22A330933