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A273604 as a simple table

na(n)
01
19
230
374
4143
5256
6401
7601
8850
91178
101575
112064
122601
133253
143994
154834
165747
176835
188040
199420
2010897
2112529
2214266
2316166
2418183
2520431
2622836
2725460
2828201
2931169
3034326
3137694
3241195
3344983
3449072
3553384
3657889
3762665
3867630
3972890
4078283
4184043

[1,9,30,74,143,256,401,601,850,1178,1575,2064,
 2601,3253,3994,4834,5747,6835,8040,9420,10897,
 12529,14266,16166,18183,20431,22836,25460,28201,
 31169,34326,37694,41195,44983,49072,53384,57889,
 62665,67630,72890,78283,84043]