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Search: id:A032093
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A032093 Number of reversible strings with n-1 beads of 2 colors. 6 beads are black. Strings is not palindromic. +0
2
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; listen)
OFFSET

8,1

LINKS

C. G. Bower, Transforms (2)

FORMULA

"BHK[ 7 ]" (reversible, identity, unlabeled, 7 parts) transform of 1, 1, 1, 1...

CROSSREFS

Sequence in context: A122994 A062311 A034956 this_sequence A007993 A052482 A080929

Adjacent sequences: A032090 A032091 A032092 this_sequence A032094 A032095 A032096

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.


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