161320

Appears in sequences

• Number of subsets of {1,2,3,...,n} that sum to 0 mod 13.at n=21A068034
• The sum of a triangular array made from a negative 6-fold permutation product.at n=28A105156
• a(n) = prime(n) * Sum_{i=1..n} prime(i).at n=28A143215
• Binomial self-convolution of sequence k -> A209305(k+1).at n=5A209306
• Number of (n+3)X(1+3) 0..1 arrays with each row and column divisible by 13, read as a binary number with top and left being the most significant bits.at n=17A262482