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Row sums of A117488 which has 1, 3, 5, 7, ... entries per row.
3

%I #5 Mar 31 2012 13:23:38

%S 1,6,30,115,374,1079,2848,7005,16285,36117,76981,158563,317014,617349,

%T 1174400,2187584,3998057,7181362,12696179,22120549,38023748,64546190,

%U 108296742,179729895,295244362,480358370,774483006,1238052200

%N Row sums of A117488 which has 1, 3, 5, 7, ... entries per row.

%C Note that the central diagonal of table A117488 is 1 2 5 20 ...

%e A117488 begins

%e 1

%e 1 2 3

%e 1 2 5 8 14

%e 1 2 5 10 18 30 49

%e 1 2 5 10 20 34 59 94 149

%e so a(n) begins

%e 1 6 30 115 374 ...

%Y Cf. A115994, A117488.

%K nonn

%O 1,2

%A _Alford Arnold_, Mar 22 2006

%E More terms from _David Wasserman_, Nov 03 2010