A124818 Row sums of number triangle A124816.
1, 1, 1, 3, 4, 12, 19, 56, 97, 284, 519, 1516, 2871, 8380, 16281, 47517, 94117, 274733, 552458, 1613119, 3283615, 9590965, 19720434, 57620008, 119480043, 349217316, 729363169, 2132461957, 4481537753, 13106711534
Offset: 0