login

A287278 as a simple table

na(n)
01
11
22
35
415
552
6203
7877
83937
918162
1085347
11405803
121942918
139339084
1445003444
15217201380
161049271992
175071767524
1824523356660
19118602078194
20573667951966
212774998925735
2213424115897227
2364941326312858
24314169695256551
251519889795069445
267352969270282127

[1,1,2,5,15,52,203,877,3937,18162,85347,405803,
 1942918,9339084,45003444,217201380,1049271992,
 5071767524,24523356660,118602078194,573667951966,
 2774998925735,13424115897227,64941326312858,
 314169695256551,1519889795069445,7352969270282127]