1605582

Appears in sequences

• Number of Dyck n-paths with ascents and descents of length equal to 1 (mod 4).at n=29A023427
• a(n) = A100092(n^2+1).at n=22A100093
• G.f. satisfies: A(x) = (1 + x*A(x)) * (1 + x^4*A(x)).at n=28A216116