50655

Appears in sequences

• a(n) is the smallest number k such that k*2^(2^n) + 1 is prime.at n=17A030239
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 15.at n=14A031693
• a(n) = (n-1)*(n-2)*(n-3) + n.at n=38A034324
• a(n) = n^3 + 2.at n=37A084380
• Triangle read by rows: T(n,k) (0 <= k <= floor(n/2)) is the number of lattice paths from (0,0) to (2n,0) consisting of steps U=(1,1), D=(1,-1), H=(2,0), never going below the x-axis (i.e., Schroeder paths) and having k UH's.at n=40A110220
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 9.at n=40A136914
• a(n) = 225n^2 + 2n.at n=14A158228
• a(n) = n*(n^3 + 2).at n=15A185065
• Number of n X 2 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.at n=8A286210
• T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.at n=46A286216
• a(n) = Sum_{d|n} sigma_3(d).at n=36A321140