51254

Appears in sequences

• Number of n-digit 7-smooth numbers (A002473).at n=29A085630
• n times n+3 gives the concatenation of two numbers m and m+7.at n=6A116336
• Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011.at n=7A259721