Warning, the protected name Chi has been redefined and unprotected There all together, 2, different equivalence classes For the equivalence class of patterns, {{[1, 2, 3]}, {[3, 2, 1]}} the member , {[1, 2, 3]}, has a scheme of depth , 2 here it is: [[[], {}, {}], [[1], {}, {}], [[1, 1], {}, {1, 2}], [[2, 1], {}, {1}], [[1, 2], {[0, 1, 1]}, {2}]] Using the scheme, the first, , 10, terms for , 1, copies of each letter are [1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796] Using the scheme, the first, , 10, terms for , 2, copies of each letter are [1, 6, 43, 352, 3114, 29004, 280221, 2782476, 28221784, 291138856] Using the scheme, the first, , 10, terms for , 3, copies of each letter are [1, 20, 374, 8124, 190893, 4727788, 121543500, 3212914524, 86782926068, 2384725558736] For the equivalence class of patterns, {{[1, 3, 2]}, {[2, 1, 3]}, {[2, 3, 1]}, {[3, 1, 2]}} the member , {[1, 3, 2]}, has a scheme of depth , 2 here it is: [[[], {}, {}], [[1], {}, {}], [[1, 1], {}, {1, 2}], [[2, 1], {}, {1}], [[1, 2], {[0, 2, 0]}, {2}]] Using the scheme, the first, , 10, terms for , 1, copies of each letter are [1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796] Using the scheme, the first, , 10, terms for , 2, copies of each letter are [1, 6, 43, 352, 3114, 29004, 280221, 2782476, 28221784, 291138856] Using the scheme, the first, , 10, terms for , 3, copies of each letter are [1, 20, 374, 8124, 190893, 4727788, 121543500, 3212914524, 86782926068, 2384725558736] Out of a total of , 2, cases 2, were successful and , 0, failed Success Rate: , 1. Here are the failures {}