5652014

Appears in sequences

• a(n) = (6*n^4 + 30*n^3 - 20*n^2 + 14)*n/30 + (n mod 2).at n=30A064837
• a(n) = (A001333(n+1) - 2*A005409(floor((n+3)/2)) - 1) / 4.at n=18A107769