78382domain: NAppears in sequencesNumbers that are the sum of 4 positive 7th powers.at n=37A003371Shifted Pascal sequence: p(x,n)=(1 + x)^(n + 1) + If[n < 2, 0, x*((1 - x)^(n + 1)*PolyLog[ -n, x]/x + (1 + x)^(n - 1))/2].at n=60A147532a(1)=0; thereafter a(n) = A238824(n-1)+A238830(n-1).at n=15A238832