1,4
Eric Weisstein's World of Mathematics, Lobster
Cf. A000055, A130132.
Adjacent sequences: A130128 A130129 A130130 this_sequence A130132 A130133 A130134
Sequence in context: A001190 A036656 A090344 this_sequence A123465 A000055 A006787
nonn,more
Eric Weisstein (eric(AT)weisstein.com), May 11, 2007
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