45878

Appears in sequences

• Numbers k such that sopf(k) = sopf(k+3), where sopf(k) = A008472(k).at n=30A063969
• Polynexus numbers of order 8.at n=7A088889
• Numbers k such that A003313(k) = A003313(5*k).at n=14A116460
• a(n) = n*(n+1)*(4*n+1)/2.at n=28A135713
• Maximal length of rook tour on an n X n+4 board.at n=38A152135