111721

Properties

Appears in sequences

• Number of permutations of length n which avoid the patterns 1234, 4123, 4132.at n=11A116769
• 288*n^2 - 168*n - 119.at n=19A118059
• Number of length 5+2 0..n arrays with some pair in every consecutive three terms totalling exactly n.at n=9A245874
• Numbers p such that p, 2p-1, 3p-2, 4p-3 are primes.at n=28A336059
• Array T(n,k) = D(2*n, -2*k-1), where D(i,j) are the polysecant numbers, for n,k >= 0, read by antidiagonals.at n=17A353952
• Array T(n,k) = D(2*n, -2*k-1), where D(i,j) are the polysecant numbers, for n,k >= 0, read by antidiagonals.at n=18A353952
• Prime numbersat n=10593