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A295370 as a simple table

na(n)
01
11
22
34
418
580
6482
73280
826244
9231148
102320130
1125238348
12302834694
133909539452
1454761642704
15816758411516
1613076340876500
17221396129723368
183985720881222850
1975503196628737920
201510373288335622576
2131634502738658957588
22696162960370556156224
2315978760340940405262668

[1,1,2,4,18,80,482,3280,26244,231148,2320130,
 25238348,302834694,3909539452,54761642704,
 816758411516,13076340876500,221396129723368,
 3985720881222850,75503196628737920,
 1510373288335622576,31634502738658957588,
 696162960370556156224,15978760340940405262668]