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A271495 as a simple table

na(n)
01
170
2668
314104
4198640
53420256
653143488
7864838016
813714054912
9220102985216
103513567575040
1156284226394112
12900460612808704
1314414430456537088
14230619566685274112
153689872453256970240
1659031392914560188416
17944463240632040030208
1815111217402853747064832

[1,70,668,14104,198640,3420256,53143488,864838016,
 13714054912,220102985216,3513567575040,
 56284226394112,900460612808704,14414430456537088,
 230619566685274112,3689872453256970240,
 59031392914560188416,944463240632040030208,
 15111217402853747064832]