30718
domain: N
Appears in sequences
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 90 ones.at n=35A031858
- a(0) = 1, a(1) = 5, a(2) = 13; a(n) = 2*a(n-1) + 2, n > 2.at n=13A060182
- G.f. satisfies: A(x) = (4 + A(x)^4) / (5-x).at n=5A244856
- Number of length n 1..(3+1) arrays with every leading partial sum divisible by 2, 3 or 5.at n=9A254822
- Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 1,0 0,-1 1,2 or -1,1.at n=4A264581
- T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 1,0 0,-1 1,2 or -1,1.at n=49A264583
- Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 1,0 0,-1 1,2 or -1,1.at n=5A264588
- Number of integers in n-th generation of tree T(2^(-1/2)) defined in Comments.at n=36A274156