A175135 Numbers k such that there exist permutations p, q of some size m such that k = f_m(f_{m-1}(...f_1(1)...)), where f_i(x) = p_i*x + q_i.
1, 2, 5, 6, 7, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 31, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 120, 121, 122, 124, 125, 126, 127, 128, 129, 130, 132, 133, 134, 135, 136, 137, 138, 139, 141, 142, 143, 145, 146, 148, 149, 150, 151, 153, 154, 157, 161, 162, 163, 165
Offset: 1
Keywords
Extensions
a(7) onward from Max Alekseyev, Dec 27 2024
Edited by Max Alekseyev, Jan 29 2025
Comments