-458752domain: ZAppears in sequencesa(n+1)=2a(n)-4a(n-1)+4a(n-2).at n=25A035302T(i,j) = (-1)^(i+j)*(i+1)*binomial(i,j)*2^(i-j)*4^j.at n=34A137337Alternated reading of A000302 and negated A002042.at n=17A140721a(n) = 2^n*(1-n).at n=15A159964