599186

Appears in sequences

• a(n) = floor(2^(n+2)/7).at n=19A033138
• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 2, 1, 0.at n=9A037521
• Numbers that are repdigits in base 8.at n=44A048333
• Positions of negative coefficients in cyclotomic polynomial Phi_n(x), converted from binary to decimal. (The constant term in the least significant bit (bit-0), the term x in the next bit (bit-1) and so on).at n=33A063698
• Expansion of 1/(1 - x - x^2 - 2*x^3).at n=20A077947
• Expansion of 1/(1+x-x^2+2*x^3).at n=20A077972
• a(1)=1, a(n) = 2*(n^(n-1)-1)/(n-1) for n >= 2.at n=7A093461
• Numbers whose base-8 or octal representation is 22222222.......2.at n=7A125835
• a(n) + a(n+1) + a(n+2) = 2^n.at n=21A152732
• A023001 interleaved with 2*A023001 and 4*A023001.at n=22A155803
• Moore lower bound on the order of a (9,g)-cage.at n=11A198309
• 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=20A263366