login

A137166 as a simple table

na(n)
01
13
27
315
432
570
6156
7349
8778
91728
103833
118505
1218884
1341943
1493160
15206897
16459459
171020311
182265815
195031792
2011174374
2124815508
2255108933
23122382762
24271780616
25603555049
261340341377
272976555532
286610168495
2914679492624

[1,3,7,15,32,70,156,349,778,1728,3833,8505,18884,
 41943,93160,206897,459459,1020311,2265815,5031792,
 11174374,24815508,55108933,122382762,271780616,
 603555049,1340341377,2976555532,6610168495,
 14679492624]