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A088929 Coefficient of x^n in A(x)^n is A087457(n) for n>=1. 1
1, 1, 2, 6, 23, 102, 497, 2586, 14121, 80006, 466658, 2786516, 16963465, 104952998, 658331520, 4178564242, 26795934011, 173388619910, 1130909675998, 7428671873154, 49107718199253, 326490488777384, 2181920676380877 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

A087457 gives number of odd length roads between any adjacent nodes in virtual optimal chordal ring of degree 3.

CROSSREFS

Cf. A087457, A088930.

Sequence in context: A120346 A050389 A098746 * A174193 A004040 A022558

Adjacent sequences:  A088926 A088927 A088928 * A088930 A088931 A088932

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Oct 24 2003

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Last modified February 17 23:58 EST 2012. Contains 206085 sequences.