261501

Appears in sequences

• Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00001011 00010101 or 01010101.at n=8A261377
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 613", based on the 5-celled von Neumann neighborhood.at n=17A283294
• a(n) is the smallest n-gonal number with binary weight n.at n=12A358930