29486

Appears in sequences

• Number of strong single-component edge-subgraphs in Moebius ladder M_n.at n=4A020870
• Number of (n+1)X(n+1) -4..4 symmetric matrices with every 2X2 subblock having sum zero and two or three distinct values.at n=9A211493
• Decimal representation of the middle column of the "Rule 45" elementary cellular automaton starting with a single ON (black) cell.at n=14A266625
• a(n) is the smallest k such that the fractional part of the decimal expansion of k*Pi begins with n zeros.at n=3A341046