login
Partial sums of A000084.
7

%I #7 Mar 30 2012 16:48:55

%S 0,1,3,7,17,41,107,287,809,2341,6965,21101,65031,202939,640441,

%T 2039509,6546861,21158437,68791923,224839127,738316629,2434622357,

%U 8058616301,26765349429,89173526191,297942766331,998072479961,3351459203873

%N Partial sums of A000084.

%D Z. A. Lomnicki, Two-terminal series-parallel networks, Adv. Appl. Prob., 4 (1972), 109-150.

%H Sameen Ahmed KHAN, <a href="/A153588/a153588.nb">Mathematica notebook for A153588 and A058351</a>

%Y Cf. A000084, A006349, A006350, A058352, A058353, A000669.

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Dec 16 2000