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A151397 as a simple table

na(n)
01
11
21
33
48
515
640
7130
8326
9854
102812
118328
1222849
1372679
14233635
15686180
162131348
177032223
1821948203
1968247127
20224907904
21731136007
222315461477
237582271275
2425158427804
2581559484413
26266864101260
27891674092876
282948579481971
299706598328841
3032479860131793
31108816989575044
32361744537905184

[1,1,1,3,8,15,40,130,326,854,2812,8328,22849,
 72679,233635,686180,2131348,7032223,21948203,
 68247127,224907904,731136007,2315461477,
 7582271275,25158427804,81559484413,266864101260,
 891674092876,2948579481971,9706598328841,
 32479860131793,108816989575044,361744537905184]