A235957 - OEIS

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A235957 as a simple table

n	a(n)
1	144
2	928
3	5196
4	27296
5	137988
6	681546
7	3311312
8	15908352
9	75789960
10	358924192
11	1692140136
12	7951451162
13	37271897084
14	174391909248
15	814845026092
16	3803491428248
17	17740156559908
18	82696152825954
19	385325015689600

[144,928,5196,27296,137988,681546,3311312, 15908352,75789960,358924192,1692140136,7951451162, 37271897084,174391909248,814845026092, 3803491428248,17740156559908,82696152825954, 385325015689600]

[144,928,5196,27296,137988,681546,3311312,
 15908352,75789960,358924192,1692140136,7951451162,
 37271897084,174391909248,814845026092,
 3803491428248,17740156559908,82696152825954,
 385325015689600]