login

A291518 as a simple table

na(n)
01
11
21
32
46
512
630
778
8186
9414
10912
112064
124338
139798
1420106
1540974
1680196
17158322
18309414
19615558
201212402
212417136
224776654
239497508
2418726708
2537056150
2672946116
27144230640
28284660874
29564451830
301118803818
312224792026
324420041210
338791590168

[1,1,1,2,6,12,30,78,186,414,912,2064,4338,9798,
 20106,40974,80196,158322,309414,615558,1212402,
 2417136,4776654,9497508,18726708,37056150,
 72946116,144230640,284660874,564451830,1118803818,
 2224792026,4420041210,8791590168]