login

A007000 as a simple table

na(n)
01
12
24
37
411
517
625
735
849
966
1088
11115
12148
13189
14238
15297
16368
17451
18550
19665
20799
21956
221136
231344
241583
251855
262167
272520
282920
293373
303882
314455
325097
335814
346617
357509
368502
379604
3810823
3912173
4013662
4115302
4217110
4319093
4421271
4523657
4626266

[1,2,4,7,11,17,25,35,49,66,88,115,148,189,238,297,
 368,451,550,665,799,956,1136,1344,1583,1855,2167,
 2520,2920,3373,3882,4455,5097,5814,6617,7509,8502,
 9604,10823,12173,13662,15302,17110,19093,21271,
 23657,26266]