265252

Appears in sequences

• Lexicographically earliest infinite sequence such that (a(i)-a(j)) mod (a(k)-a(j)) is nonzero whenever i,j,k are disjoint.at n=22A178850
• Number of 7-step self-avoiding walks on an n X n square summed over all starting positions.at n=20A188152
• a(n) = the smallest number k such that the base-10 digital sum of sigma(k) is n.at n=45A256635