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A289616
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A246604 (Catalan(n)-n) with initial terms 1,0,0,2,10 changed to 1,1,1,2,11.
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7
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1, 1, 1, 2, 11, 37, 126, 422, 1422, 4853, 16786, 58775, 208000, 742887, 2674426, 9694830, 35357654, 129644773, 477638682, 1767263171, 6564120400, 24466266999, 91482563618, 343059613627, 1289904147300, 4861946401427, 18367353072126, 69533550915977, 263747951750332, 1002242216651339
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OFFSET
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1,4
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COMMENTS
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Related to number of mesh patterns of length 2 that avoid the pattern 321.
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LINKS
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MATHEMATICA
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Join[{1, 1, 1, 2, 11}, Array[CatalanNumber[#]-#&, 30, 5]] (* Paolo Xausa, Dec 08 2023 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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