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 A155083 A directed animal related triangle. 1
 1, 1, 1, 2, 3, 1, 5, 9, 6, 1, 13, 29, 25, 10, 1, 35, 92, 100, 55, 15, 1, 96, 291, 377, 266, 105, 21, 1, 267, 915, 1375, 1169, 602, 182, 28, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS First column is A005773. Row sums are A129775. LINKS FORMULA G.f.: 1/(1-xy-x/(1-x-xy-x^2/(1-x-xy-x^2/(1-x-xy-x^2/(1-...))))) (continued fraction). EXAMPLE Triangle begins 1, 1, 1, 2, 3, 1, 5, 9, 6, 1, 13, 29, 25, 10, 1, 35, 92, 100, 55, 15, 1, 96, 291, 377, 266, 105, 21, 1, 267, 915, 1375, 1169, 602, 182, 28, 1 CROSSREFS Sequence in context: A147747 A039599 A154380 * A011357 A080409 A255689 Adjacent sequences:  A155080 A155081 A155082 * A155084 A155085 A155086 KEYWORD easy,nonn,tabl AUTHOR Paul Barry, Jan 19 2009 STATUS approved

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Last modified May 8 02:26 EDT 2021. Contains 343652 sequences. (Running on oeis4.)