28167

Appears in sequences

• Numbers k such that (k! + 3)/3 is prime.at n=22A089085
• a[n] =a[n-1] + 2*n*Prime[n]-n^2.at n=23A093809
• Triangle T(n, k) read by rows: T(n, k)= (m*n-m*k+1)*T(n-1, k-1) + k*(m*k-(m-1))*T(n-1, k) where m = 1.at n=23A166960
• Number of representations of 0 as a sum of numbers d*k with d in {-1,1} and k in {1,2,...,n}, where the sum of the numbers k is 2n.at n=19A236429
• Triangle read by rows: T(n,k) = number of tilings of a n X k rectangle using 2 X 2 and 1 X 1 tiles and right trominoes, n >= 0, k=0..n.at n=31A353963
• Number of tilings of a 3 X n rectangle using 2 X 2 and 1 X 1 tiles and right trominoes.at n=7A353965