49144

Appears in sequences

• n is equal to the number of 1's in all numbers <= n written in base 8.at n=18A014885
• a(n) = 3*a(n-1) - 2*a(n-2) with a(0)=16 and a(1)=40.at n=11A182461
• E.g.f. B = B(x,y) satisfies: A^2 + B^2 + C^2 = 1 + y^2 and A^3 + B^3 + C^3 = 1 + y^3, where functions A = A(x,y) and C = C(x,y) are described by A278885 and A278887, respectively.at n=74A278886
• E.g.f. C = C(x,y) satisfies: A^2 + B^2 + C^2 = 1 + y^2 and A^3 + B^3 + C^3 = 1 + y^3, where functions A = A(x,y) and B = B(x,y) are described by A278885 and A278886, respectively.at n=70A278887
• Starts of runs of 4 consecutive positive negabinary-Niven numbers (A331728).at n=11A331824