104340

Appears in sequences

• Positive numbers k such that k and 4*k are anagrams in base 5 (written in base 5).at n=15A023063
• Number of triangles a queen can make (starting anywhere) on an n X n board.at n=37A030117
• a(n) = n*(n+1)*(13*n+2)/6.at n=36A257093
• a(n) = 102*2^n - 108 (n>=1).at n=9A304830