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A271266 as a simple table

na(n)
01
122
2550
316500
4610500
528083000
61600731000
7112051170000
89524349450000
9971483643900000
10117549520911900000
1116692031969489800000
122754185274965817000000
13523295202243505230000000
14113555058886840634910000000
1527934544486162796187860000000
167737868822667094544037220000000

[1,22,550,16500,610500,28083000,1600731000,
 112051170000,9524349450000,971483643900000,
 117549520911900000,16692031969489800000,
 2754185274965817000000,523295202243505230000000,
 113555058886840634910000000,
 27934544486162796187860000000,
 7737868822667094544037220000000]