49540

Appears in sequences

• Number of minimal T_0-covers of an n-set.at n=7A094545
• Numbers n such that S(n) = 0, where S(n) = (S(n-1) + A000040(n+1))*(-1)^n; S(0)=0, n >= 1.at n=12A131693
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape F; triangle T(n,k), n>=0, 0<=k<=max(delta_{3,n},floor((n-2)/2)*2), read by rows.at n=17A247702
• a(n) = [x^n] Product_{k>=1} ((1 + x^k)/(1 + x^(4*k)))^n.at n=9A304628