login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A224531 as a simple table

na(n)
10
21
32
43
54
66
75
88
910
1012
1115
1216
1320
1424
1530
1613
1721
1826
1928
2036
2142
2251
2364
2468
2580
2696
27102
28120
2937
3057
3163
3274
3376
34108
35114
36126
3741
3855
3975
4082
4188
42100
43110
44132
45150
4635
4739
4845
4952
5056
5170
5272
5378
5484
5590
5665
57104
58105
59112
60130
61140
62144
63156
64168
65180
66210

[0,1,2,3,4,6,5,8,10,12,15,16,20,24,30,13,21,26,28,
 36,42,51,64,68,80,96,102,120,37,57,63,74,76,108,
 114,126,41,55,75,82,88,100,110,132,150,35,39,45,
 52,56,70,72,78,84,90,65,104,105,112,130,140,144,
 156,168,180,210]