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A244705 as a simple table

na(n)
51
61
73
86
915
1029
1168
12140
13312
14660
151443
163084
176710
1814425
1931278
2067508
21146300
22316424
23685955
241486008
253223480
266992012
2715179437
2832960891
2971617874
30155661971
31338508703
32736401503
331602712182
343489454243
357600403101
3616560519877
3736097320801

[1,1,3,6,15,29,68,140,312,660,1443,3084,6710,
 14425,31278,67508,146300,316424,685955,1486008,
 3223480,6992012,15179437,32960891,71617874,
 155661971,338508703,736401503,1602712182,
 3489454243,7600403101,16560519877,36097320801]