88794domain: NAppears in sequencess(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = A001950 (upper Wythoff sequence).at n=26A024475[ exp(15/19)*n! ].at n=7A030863