30825

Appears in sequences

• Expansion of Product_{m>=1} (1+m*q^m)^25.at n=4A022653
• Number of (0,1) matrices with n ones and no zero rows or columns, up to row and column permutations.at n=11A049311
• Number of nX7 binary arrays without the pattern 0 0 diagonally or vertically.at n=2A188704
• T(n,k)=Number of nXk binary arrays without the pattern 0 0 diagonally or vertically.at n=38A188706
• Number of 3 X n binary arrays without the pattern 0 0 diagonally or vertically.at n=6A188707
• E.g.f. satisfies: A(x - Integral 2*A(x) dx) = x + Integral 3*A(x) dx.at n=4A280573
• Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.at n=19A298090
• Numbers m such that the largest digit in the decimal expansion of 1/m is 4.at n=21A351470
• Terms k of A228058 for which A048146(k)+A162296(k) >= 2*k, where A048146 is the sum of non-unitary divisors, and A162296 is the sum of divisors that have a square factor.at n=41A389219