A115084 Row sums of triangle A115080.
1, 2, 6, 20, 82, 397, 2186, 13241, 86578, 603249, 4440800, 34313272, 276904847, 2324369733, 20227700385, 181987602305, 1688734327673, 16129293322211, 158281104406067, 1593383284029479, 16431757177327175, 173372313294822983
Offset: 0