224056801domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(245).at n=18A041459Integer Quotients of Lucas Numbers; a rectangular array by downward antidiagonals.at n=39A143790a(n) = L(11*n)/L(n) where L(n) = A000204(n).at n=3A153179a(n) = L(8*n+4)/7, where L = A000032 (the Lucas sequence).at n=5A333718