50055

Appears in sequences

• Recip transform of 2*(1 + x^2 + x^4)-1/(1-x).at n=14A049153
• Integers that are Rhonda numbers to base 16.at n=16A100975
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 4 and 5.at n=58A136882
• Numbers k such that k and k^2 use only the digits 0, 2, 3 and 5.at n=19A136887
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 7.at n=21A136889
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 8.at n=26A136890
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 9.at n=54A136891
• Numbers whose decimal expansion contains only 0's and 5's.at n=19A169964
• G.f.: A(x) = exp( Sum_{n>=1} 5*5^A112765(n) * x^n/n ), where A112765 is the exponent of the highest power of 5 dividing n.at n=21A195760
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.at n=40A282721
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p that are < p/2.at n=41A282724
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 542", based on the 5-celled von Neumann neighborhood.at n=37A289094
• For n >= 1, a(n) = A007088(n)/gcd(n, A007088(n)).at n=37A354838