25161

Appears in sequences

• Denominators of continued fraction convergents to sqrt(202).at n=8A041375
• Numbers having four 1's in base 8.at n=33A043428
• Expansion of 1/((1+x)*(1-2*x+2*x^2-2*x^3)).at n=25A052942
• Number of base 11 circular n-digit numbers with adjacent digits differing by 4 or less.at n=5A125348
• E.g.f.: A(x) = exp( Sum_{n>=1} 2^(n(n-1)) * x^n/n ).at n=4A171776
• Numbers k such that (302*10^k + 13)/9 is prime.at n=21A281144