44733781domain: NAppears in sequencesa(n) = Sum_{k=floor((n+1)/2)..n} J(k+1), J(k) = A001045(k).at n=25A129362Nontrivial odd solutions n to P(n) == 1+r*Sum_{i=1..d(n)} x^i mod m where P(n) is the n-th Stern polynomial, d(n) is the degree of P(n), r=0, m=3.at n=12A327848