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A027818 as a simple table

na(n)
01
114
284
3336
41050
52772
66468
713728
827027
950050
1088088
11148512
12241332
13379848
14581400
15868224
161268421
171817046
182557324
193542000
204834830
216512220
228665020
2311400480
2414844375
2519143306
2624467184
2731011904
2839002216
2948694800
3060381552
3174393088
3291102473

[1,14,84,336,1050,2772,6468,13728,27027,50050,
 88088,148512,241332,379848,581400,868224,1268421,
 1817046,2557324,3542000,4834830,6512220,8665020,
 11400480,14844375,19143306,24467184,31011904,
 39002216,48694800,60381552,74393088,91102473]