50675

Appears in sequences

• Least term in period of continued fraction for sqrt(n) is 9.at n=33A031433
• a(n) = Sum_{i=0..n} binomial(i,floor(i/2)).at n=17A036256
• Let r_1 = 1. Let r_{m+1} = r_1 + 1/(r_2 + 1/(r_3 +...(r_{m-1} + 1/r_m)...)), a continued fraction of rational terms. Then a(n) is the number of (positive integer) terms in the simple continued fraction of r_n.at n=18A138743
• a(n) = 81*n^2 + 2*n.at n=24A177099
• Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7.at n=6A252402
• Number of (7+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7.at n=2A252414
• a(n) = Sum_{k=0..n} (3*k+2)*Catalan(k).at n=8A274104
• Numbers k such that 8*10^k + 39 is prime.at n=25A280924