41622

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 68.at n=5A031746
• a(n) = 36*n^2 + 6.at n=33A158479
• Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having directed index change -1,1 0,-1 0,1 or 1,0.at n=5A264502
• 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 -1,1 0,-1 0,1 or 1,0.at n=41A264506
• Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,1 0,-1 0,1 or 1,0.at n=3A264512
• a(n) = n! * Sum_{k=0..n} binomial(k+3,4) / k!.at n=7A368575
• Numbers k such that both A381019(k) and A381019(k+1) are composite.at n=7A381120