85215

Appears in sequences

• Quotient: squarefree kernel of A002944(n) divided by that of A001405.at n=53A056611
• a(n) = Sum_{k=0..n} (-1)^k*k*Fibonacci(k), where Fibonacci(k) = A000045(k).at n=20A263878
• Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.at n=5A295210
• Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.at n=4A295211
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.at n=49A295213
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.at n=50A295213