login

A251762 as a simple table

na(n)
00
10
20
30
40
51
60
70
80
90
101
112
124
138
1416
1532
1663
17126
18252
19504
201008
212015
224028
238052
2416096
2532176
2664320
27128577
28257028
29513804
301027104
312053200
324104385
338204742
3416401432
3532786768
3665541360
37131018400
38261908223
39523559418
401046605032
412092182960

[0,0,0,0,0,1,0,0,0,0,1,2,4,8,16,32,63,126,252,504,
 1008,2015,4028,8052,16096,32176,64320,128577,
 257028,513804,1027104,2053200,4104385,8204742,
 16401432,32786768,65541360,131018400,261908223,
 523559418,1046605032,2092182960]