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A048096 as a simple table

na(n)
10
20
30
40
52
68
720
841
963
10126
11252
12505
131000
141936
153652
167305
1714313
1827573
1952325
2097868
21180404
22327692
23586568
241034930
252718254
265012504
279131804
2816440929
2929259404
3051482510
3189575460
32154146135
33262403715
34441956955

[0,0,0,0,2,8,20,41,63,126,252,505,1000,1936,3652,
 7305,14313,27573,52325,97868,180404,327692,586568,
 1034930,2718254,5012504,9131804,16440929,29259404,
 51482510,89575460,154146135,262403715,441956955]