A335769
a(n) is the number of regions formed by n-secting the angles of an octagon.
Original entry on oeis.org
1, 8, 25, 104, 321, 80, 617, 624, 745, 1056, 1617, 896, 2233, 2224, 2465, 3024, 3929, 2472, 4809, 4848, 5193, 5944, 7217, 5528, 8305, 8456, 8929, 9856, 11513, 9336, 12849, 13080, 13617, 14816, 16809, 13744, 18417, 18632, 19329, 20728, 23073, 19936, 25001
Offset: 1
A335770
a(n) is the number of vertices formed by n-secting the angles of an octagon.
Original entry on oeis.org
8, 9, 24, 89, 328, 57, 624, 577, 744, 993, 1624, 793, 2240, 2129, 2464, 2913, 3936, 2121, 4816, 4705, 5192, 5785, 7224, 5233, 8312, 8265, 8928, 9649, 11520, 8929, 12856, 12841, 13616, 14561, 16816, 12929, 18424, 18345, 19328, 20425, 23080, 19337, 25008, 24849
Offset: 1
A335772
Irregular table read by rows: n-sect the angles of an octagon. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.
Original entry on oeis.org
0, 0, 0, 0, 0, 1, 8, 16, 8, 0, 0, 0, 1, 64, 32, 8, 112, 160, 24, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 56, 24, 224, 272, 72, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 304, 176, 136, 8, 336, 224, 104, 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 496, 320, 192, 40, 8
Offset: 1
The table begins
0, 0, 0, 0, 0, 1;
8;
16, 8, 0, 0, 0, 1;
64, 32, 8;
112, 160, 24, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;
56, 24;
224, 272, 72, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;
304, 176, 136, 8;
336, 224, 104, 80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1;
496, 320, 192, 40, 8;
Showing 1-3 of 3 results.
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