50980

Appears in sequences

• Similar to A137284, but considering Sum{ k = 1,2,3,... } 5^(-nk).at n=28A136275
• Number of partitions of n containing a clique of size 1.at n=42A183558
• Number of peakless Motzkin paths of length n having no (1,0)-steps at levels 0,2,4,... .at n=22A190165
• Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.at n=7A255085
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.at n=37A255091
• Expansion of Product_{i>=2, j>=2} 1 / (1 - x^(i*j))^j.at n=39A326830