66313

Appears in sequences

• Numbers k that divide the (left) concatenation of all numbers <= k written in base 7 (most significant digit on left).at n=13A029476
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,1,4}.at n=47A079956
• Semiprimes sp of the form p^2 + q + 1 where p and q are consecutive primes.at n=20A242243
• Number of (3+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=35A258556