58620

Appears in sequences

• Numerators of continued fraction convergents to sqrt(671).at n=9A042290
• Numbers k such that (k+1)*phi(k) is a perfect square.at n=27A069952
• Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1 <= k <= m positions can be picked in an m X m square array such that their adjacency graph consists of a single component. Two positions (s,t), (u,v) are considered as adjacent if max(abs(s-u), abs(t-v)) <= 1.at n=26A098485
• Number of 1's in A127962(n).at n=32A127963