5931640

Appears in sequences

• Largest term in periodic part of continued fraction expansion of square root of 2^n + 1 or 0 if 2^n + 1 is a square.at n=42A077624
• Largest term in periodic part of continued fraction expansion of square root of -1+2^n or 0 if -1+2^n is square.at n=42A077625
• a(n) = A055086(2^n).at n=42A078159
• Values of s in Wolfram's iteration for sqrt(2).at n=21A095804