60843

Appears in sequences

• Antidiagonal sums of the convolution array A213844.at n=16A213846
• Number of n-digit semiprimes whose prime factors concatenated larger to the right of smaller form an n-digit prime (in decimal).at n=6A259493
• a(n) = (a(n-1) + a(n-3))/2^m, where 2^m is the highest power of 2 that divides both a(n-1) and a(n-3), with a(0) = a(1) = a(2) = 1.at n=50A341313