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A056471
Number of palindromic structures using a maximum of six different symbols.
+0
5
1, 1, 2, 2, 5, 5, 15, 15, 52, 52, 203, 203, 876, 876, 4111, 4111, 20648, 20648, 109299, 109299, 601492, 601492, 3403127, 3403127, 19628064, 19628064, 114700315, 114700315, 676207628, 676207628, 4010090463
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Maintained by
N. J. A. Sloane
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
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