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A027944 as a simple table

na(n)
31
437
5376
62267
710220
838403
9127921
10392688
111140260
123189022
138699540
1423352118
1562048869
16163843187
17431026972
181131463777
192966502032
207772382641
2120356549685
2253305176134
23139569431544
24365416760764
25956698453752
262504701077772
276557433205689
2817167634170241

[1,37,376,2267,10220,38403,127921,392688,1140260,
 3189022,8699540,23352118,62048869,163843187,
 431026972,1131463777,2966502032,7772382641,
 20356549685,53305176134,139569431544,365416760764,
 956698453752,2504701077772,6557433205689,
 17167634170241]