login

A189376 as a simple table

na(n)
01
13
26
310
417
527
640
756
878
9106
10140
11180
12230
13290
14360
15440
16535
17645
18770
19910
201071
211253
221456
231680
241932
252212
262520
272856
283228
293636
304080
314560
325085
335655
346270
356930
367645
378415
389240
3910120
4011066
4112078

[1,3,6,10,17,27,40,56,78,106,140,180,230,290,360,
 440,535,645,770,910,1071,1253,1456,1680,1932,2212,
 2520,2856,3228,3636,4080,4560,5085,5655,6270,6930,
 7645,8415,9240,10120,11066,12078]