29528

Appears in sequences

• Numbers having four 4's in base 9.at n=23A043472
• n*10^2-1, n*10^2-3, n*10^2-7 and n*10^2-9 are all prime.at n=36A064976
• Rows sums of triangle A152072.at n=22A152074
• Numbers of the form (7^j + 9^k)/2, for j and k >= 0.at n=31A226795
• Array read by antidiagonals: column k lists the 2-Stöhr sequence composed of terms rejected from column k-1.at n=55A271589
• a(n) is the least k such that A322523(k) = n.at n=10A354538