362862

Appears in sequences

• Triangle T(n, k) = n*( (n-1)! - (k-1)! ), read by rows.at n=38A137259
• Least number k >= 0 such that (n!+k)/(n+k) is prime.at n=6A242568
• a(n) = n! - 2*n.at n=9A242569
• a(n) = 9*8*7*6*5*4*3*2*1 - 18*17*16*15*14*13*12*11*10 + 27*26*25*24*23*22*21*20*19 - ... + (up to the n-th term).at n=9A319892
• Triangle read by rows: T(n, k) is the number of n X n symmetric Toeplitz matrices of rank k using all the first n prime numbers integers.at n=44A364233
• a(n) is the number of n X n nonsingular symmetric Toeplitz matrices using all the first n prime numbers.at n=8A364234