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A005656
Number of bracelets (turn over necklaces) with n red, 1 pink and n-3 blue beads; also reversible strings with n red and n-3 blue beads.
(Formerly M2920)
+0
1
0, 0, 1, 3, 12, 44, 170, 651, 2520, 9752, 37854, 147070, 572264, 2229096, 8692788, 33933459, 132594480, 518584880, 2029976630, 7952706234, 31179618184, 122331419080, 480283635468, 1886828198398
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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