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A091046 as a simple table

na(n)
11
24
320
4119
5817
66338
754707
8519184
95366097
1059934937
11718748131
129203953921
13125268224954
141804750726306
1527426230051634
16438260834123607
177343677070172330
18128716143768613600
192354633702684629141
2044865189679858465163
21888784065003104357924

[1,4,20,119,817,6338,54707,519184,5366097,
 59934937,718748131,9203953921,125268224954,
 1804750726306,27426230051634,438260834123607,
 7343677070172330,128716143768613600,
 2354633702684629141,44865189679858465163,
 888784065003104357924]