149682domain: NAppears in sequencesa(n) = [ a(n-1)/a(1) ] + [ a(n-2)/a(2) ] + ... + [ a(1)/a(n-1) ], for n >= 3.at n=26A022864Row sums of A071946.at n=10A119254G.f.: Sum_{k>0} x^prime(k)/(1-x)^k.at n=31A278800Numbers k such that k and k+2 are both unitary untouchable numbers (A063948).at n=14A357323