84312

Appears in sequences

• Numbers k such that 2k-1 divides 2^k-1.at n=36A081856
• Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= n).at n=65A125753
• Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 1).at n=65A125761
• Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 2n).at n=65A126743
• Number of (n+7)X(n+7) 0..1 matrices with each 8X8 subblock idempotent.at n=2A224589
• Number of (n+7)X10 0..1 matrices with each 8X8 subblock idempotent.at n=2A224592
• T(n,k)=Number of (n+7)X(k+7) 0..1 matrices with each 8X8 subblock idempotent.at n=12A224597
• Triangle read by rows: T(n,k) is the number of homeomorphically irreducible leaf colored trees with n leaves using exactly k colors.at n=40A339780
• Number of homeomorphically irreducible leaf colored trees with n leaves using exactly 4 colors.at n=7A339787