# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a001853 Showing 1-1 of 1 %I A001853 M2743 N1102 #27 Feb 04 2022 00:46:55 %S A001853 0,1,3,8,22,58,158,425,1161,3175,8751,24192,67239,187459,524579, %T A001853 1472086,4142639,11685501,33036492,93583873,265589158,754998424, %U A001853 2149588878,6128914829,17497927510,50017546412,143137957590,410062891934,1175925220607,3375322972597 %N A001853 Total height of trees with n nodes. %D A001853 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A001853 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A001853 Alois P. Heinz, Table of n, a(n) for n = 1..300 %H A001853 J. Riordan, Enumeration of trees by height and diameter, IBM J. Res. Dev. 4 (1960), 473-478. %H A001853 J. Riordan, The enumeration of trees by height and diameter, IBM Journal 4 (1960), 473-478. (Annotated scanned copy) %H A001853 Index entries for sequences related to trees %F A001853 a(n) = Sum_{k=1..n-1} A034781(n,k)*k. - _Sean A. Irvine_, Mar 24 2016 %Y A001853 Cf. A034781. %K A001853 nonn %O A001853 1,3 %A A001853 _N. J. A. Sloane_ %E A001853 More terms from _Sean A. Irvine_, Mar 24 2016 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE