121095

Appears in sequences

• Number of permutations of length n which avoid the patterns 123, 51432.at n=12A116847
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 11000-01111-11000 pattern in any orientation.at n=18A147458
• Triangle read by rows: T(n,k) is the number of c-nets with n+1 faces and k+1 vertices, 1 <= k <= n. But see A290326 for a better version.at n=99A210252
• Triangle read by rows: T(n,k) is the number of c-nets with n+1 faces and k+1 vertices.at n=64A290326