38347922

Appears in sequences

• a(n) = floor(2^(n+2)/7).at n=25A033138
• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 2, 1, 0.at n=12A037521
• Expansion of 1/(1 - x - x^2 - 2*x^3).at n=26A077947
• Expansion of 1/(1+x-x^2+2*x^3).at n=26A077972
• Numbers whose base-8 or octal representation is 22222222.......2.at n=9A125835
• a(n) + a(n+1) + a(n+2) = 2^n.at n=27A152732
• A023001 interleaved with 2*A023001 and 4*A023001.at n=28A155803
• Moore lower bound on the order of a (9,g)-cage.at n=15A198309
• Number of (n+1) X (1+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.at n=26A263366