58608

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 11.at n=25A031689
• Number of distinct (non-overlapping) twin Harshad numbers whose sum is prime and where the 2nd Harshad is <= 10^n.at n=7A060289
• a(n) = 121*n^2 + 2*n.at n=21A181679
• Triangle read by rows, arising in enumeration of permutations by cyclic valleys, cycles and fixed points.at n=18A217202
• Triangle read by rows, related to Bell numbers A000110: A216963 interlaced with A217202.at n=39A217205
• Numbers k such that 10^k - 800001 is prime.at n=24A288822
• Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=7A305449