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 A245124 Number of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) 5. 2
 1, 4, 11, 28, 70, 160, 366, 804, 1748, 3734, 7918, 16597, 34601, 71628, 147631, 302857, 619231, 1261849, 2564795, 5200248, 10522565, 21252174, 42854194, 86286963, 173517189, 348523105, 699311092, 1401837776, 2807733181, 5619221464, 11238041122, 22460777472 (list; graph; refs; listen; history; text; internal format)
 OFFSET 15,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 15..750 EXAMPLE a(15) = 1: :        o        : :   / (  |  ) \   : :  o  o  o  o  o  : :  | ( ) |  |     : :  o o o o  o     : :  | |   |        : :  o o   o        : :  |              : :  o              : MAPLE b:= proc(n, i, h, v) option remember; `if`(n=0, `if`(v=0, 1, 0),       `if`(i<1 or v<1 or n b(n-1\$2, 5\$2): seq(a(n), n=15..50); CROSSREFS Column k=5 of A245120. Sequence in context: A099326 A127985 A005409 * A020964 A113067 A290890 Adjacent sequences:  A245121 A245122 A245123 * A245125 A245126 A245127 KEYWORD nonn AUTHOR Alois P. Heinz, Jul 12 2014 STATUS approved

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Last modified July 23 13:58 EDT 2019. Contains 325254 sequences. (Running on oeis4.)