A075532 - OEIS

%I #6 Mar 30 2012 17:37:12

%S 1,1,0,1,0,0,1,0,0,1,1,0,0,1,1,1,0,2,2,1,1,3,2,2,3,4,4,5,6,5,7,9,10,

%T 11,11,16,21,19,19,28,32,38,38,46,53,68,77,82,95,112,134,157,172,198,

%U 232,270,312,363,411,471,548,642,733,850,964,1120,1300,1502,1707,1982

%N Number of rooted trees where each node at height h has 0 or h+1 children.

%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>

%Y Cf. A075533, A075534.

%K nonn

%O 1,18

%A _Christian G. Bower_, Sep 19 2002. Suggested by David W. Wilson.