login

A145868 as a simple table

na(n)
01
12
26
319
468
5255
61020
74221
818186
980304
10364476
111684782
127944156
1337988379
14184406508
15905147815
164495346570
1722527055980
18113957354940
19580759868910
202982724210440
2115414453711930
2280177422383240
23419249099692710
242204316120027420
2511642676960438000

[1,2,6,19,68,255,1020,4221,18186,80304,364476,
 1684782,7944156,37988379,184406508,905147815,
 4495346570,22527055980,113957354940,580759868910,
 2982724210440,15414453711930,80177422383240,
 419249099692710,2204316120027420,
 11642676960438000]