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A027910 as a simple table

na(n)
21
36
436
5210
61221
77098
841328
9241128
101409895
118260934
1248497064
13285219090
141680166215
159912297150
1658558256496
17346371955776
182051126447742
1912158963346852
2072147074769640
21428476010502582
222546776668682323
2315149061841758174
2490175327717962024

[1,6,36,210,1221,7098,41328,241128,1409895,
 8260934,48497064,285219090,1680166215,9912297150,
 58558256496,346371955776,2051126447742,
 12158963346852,72147074769640,428476010502582,
 2546776668682323,15149061841758174,
 90175327717962024]