login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A284689 as a simple table

na(n)
10
20
30
44
50
60
74
80
94
100
116
126
138
148
158
1610
1715
1826
1917
2034
2139
2232
2373
2454
2599
2668
27133
28138
29167
30256
31261
32338
33357
34467
35545
36668
37775
38958
391107
401298
411370
421867
432005
442311
452840
463198
473818
484258
494945
505960
516887
528056
539122
5410348
5512614
5614154

[0,0,0,4,0,0,4,0,4,0,6,6,8,8,8,10,15,26,17,34,39,
 32,73,54,99,68,133,138,167,256,261,338,357,467,
 545,668,775,958,1107,1298,1370,1867,2005,2311,
 2840,3198,3818,4258,4945,5960,6887,8056,9122,
 10348,12614,14154]