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A187428 as a simple table

na(n)
01
14
214
337
493
5210
6454
7925
81824
93463
106408
1111538
1220353
1335161
1459726
1599775
16164337
17266978
18428521
19679861
201067415
211659205
222555617
233902055
245909867
258881849
2613252334
2719637281
2828909989
2942297267
3061520450
3188976461
32127996994

[1,4,14,37,93,210,454,925,1824,3463,6408,11538,
 20353,35161,59726,99775,164337,266978,428521,
 679861,1067415,1659205,2555617,3902055,5909867,
 8881849,13252334,19637281,28909989,42297267,
 61520450,88976461,127996994]