33372

Appears in sequences

• a(1) = 7; a(n+1) = a(n)-th nonprime, where nonprimes begin at 1.at n=42A025006
• Card-matching numbers (Dinner-Diner matching numbers).at n=28A059070
• Matrix log of triangle A078122, which shifts columns left and up under matrix cube; these terms are the result of multiplying each element in row n and column k by (n-k)!.at n=39A111815
• Convolution of A008619 and A001400.at n=39A139672
• Number of (n+1)X(1+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 10.at n=2A233749
• Number of (n+1)X(3+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 10.at n=0A233751
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 10.at n=3A233755
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 10.at n=5A233755
• Numbers k such that k = Product (p_j^e_j) = Product (pi(p_j)*p_j), where pi() = A000720.at n=23A304194
• a(n) = 972*n^2 - 270*n (n>=1).at n=5A305071
• a(n) = Sum_{k=0..n} binomial(2*k,k) * binomial(2*n-k-1,n-k).at n=7A386940