8589803521

Appears in sequences

• a(n) = 2^(2n+1) - 2^(n+1) + 1.at n=16A092440
• a(2n) = A060867(n+1), a(2n+1) = A092440(n+1).at n=31A276918
• The hypotenuses of the triangles defined in A365577.at n=4A385973