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”).

A154787 as a simple table

na(n)
10
20
30
44
55
66
77
816
918
1020
1122
1236
1326
1428
1545
1632
1751
1872
1919
2060
2184
2266
2369
24120
25100
2678
27135
2884
2987
30180
3162
32160
33198
3468
35175
36216
37148
38190
39273
40160
41164
42336
43172
44176
45405
46184
47188
48336
49147
50300
51408
52260
53265
54432
55330
56392
57570

[0,0,0,4,5,6,7,16,18,20,22,36,26,28,45,32,51,72,
 19,60,84,66,69,120,100,78,135,84,87,180,62,160,
 198,68,175,216,148,190,273,160,164,336,172,176,
 405,184,188,336,147,300,408,260,265,432,330,392,
 570]