60528

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 41.at n=5A031719
• Numbers k such that sigma(prime(k) - 1) == 0 (mod k).at n=39A067758
• Triangle read by rows: T(n,k) is number of Grand Motzkin paths of length n having k returns to the x-axis (i.e., d or u steps hitting the x-axis).at n=51A109193
• Number of real {0,1}-matrices of size n X n which are not robust (cf. A125587).at n=3A126603
• Triangle read by rows, 0 <= k < n, n >= 2: T(n,k) is the eventual period of the modified Fibonacci sequence x(j) (or 0 if x(j) never enters a cycle) defined as follows: x(0) = 0, x(1) = 1, and for j > 1 x(j) is obtained from x(j-1) + x(j-2) by deleting all occurrences of the digit k in base n.at n=72A306773