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A032093
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Number of reversible strings with n-1 beads of 2 colors. 6 beads are black. Strings is not palindromic.
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1
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3, 12, 40, 100, 226, 452, 848, 1484, 2485, 3976, 6160, 9240, 13524, 19320, 27072, 37224, 50391, 67188, 88440, 114972, 147862, 188188, 237328, 296660, 367913, 452816, 553504, 672112, 811240, 973488, 1161984, 1379856
(list; graph; refs; listen; history; internal format)
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