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A214282 as a simple table

na(n)
11
21
31
43
56
610
715
835
970
10126
11210
12462
13924
141716
153003
166435
1712870
1824310
1943758
2092378
21184756
22352716
23646646
241352078
252704156
265200300
279657700
2820058300
2940116600
3077558760
31145422675
32300540195
33601080390
341166803110
352203961430
364537567650
379075135300
3817672631900

[1,1,1,3,6,10,15,35,70,126,210,462,924,1716,3003,
 6435,12870,24310,43758,92378,184756,352716,646646,
 1352078,2704156,5200300,9657700,20058300,40116600,
 77558760,145422675,300540195,601080390,1166803110,
 2203961430,4537567650,9075135300,17672631900]