37402

Appears in sequences

• Numbers k such that 5*10^k + R_k + 8 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=13A103007
• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n and having k DDUU's, where U=(1,1), D=(1,-1) (0<=k<=floor(n/2)-1 for n>=2).at n=41A114492
• Square spiral of sums of selected preceding terms, starting at 1.at n=44A141481
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 0), (1, -1, 1), (1, 1, -1), (1, 1, 0)}.at n=9A149211
• 1/16 the number of (n+1) X 6 0..3 arrays with all 2 X 2 subblocks having the same four values.at n=12A184035
• Number of (n+1) X 4 binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column.at n=21A202330
• Number of nX5 0..1 arrays with exactly n+5-2 having value 1 and no three 1s forming an isosceles right triangle.at n=7A272955