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1, 3, 7, 11, 19, 23, 31, 39, 55, 59, 67, 75, 91, 99, 115, 131, 163, 167, 175, 183, 199, 207, 223, 239, 271, 279, 295, 311, 343, 359, 391, 423, 487, 491, 499, 507, 523, 531, 547, 563, 595, 603, 619, 635, 667, 683, 715, 747, 811, 819, 835, 851, 883, 899, 931, 963
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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COMMENTS
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The number of edges in A080973-trees.
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LINKS
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MATHEMATICA
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Map[2 # + 1 &, {0}~Join~Accumulate@ Map[Count[#, _?OddQ] &, Table[Binomial[n, k], {n, 0, 54}, {k, 0, n}]]] (* Michael De Vlieger, Oct 30 2022 *)
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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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