57279

Appears in sequences

• Number of fixed convex polyominoes with n cells.at n=11A067675
• Numbers k such that 4^k + 2^k - 1 is prime.at n=31A098855
• Number of (n+6)X9 0..1 matrices with each 7X7 subblock idempotent.at n=10A224583
• Number of integers in n-th generation of tree T(2/3) defined in Comments.at n=42A274145
• Expansion of (1/x) * Series_Reversion( x * (1-x^3/(1-x))^3 ).at n=13A369014