80430

Appears in sequences

• Numbers with exactly 5 distinct prime factors each of which is a palindrome.at n=18A046403
• Numbers k having exactly 5 distinct prime factors, the largest of which is greater than or equal to sqrt(k) (i.e., sqrt(k)-rough numbers with exactly 5 distinct prime factors).at n=29A115959
• Coefficients in the expansion of C/B^7, in Watson's notation of page 118.at n=9A160539
• Euler transform of composite numbers.at n=11A197132
• Number of (4+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.at n=10A252309