A088027 - OEIS

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A088027 as a simple table

n	a(n)
1	4
2	16
3	196
4	1156
5	64516
6	440896
7	26173456
8	340254916
9	14809429636
10	787326134596
11	56199671262736
12	3984666393117796
13	468395620836767716
14	9526636662047700196
15	659973251187594258916
16	205358215375529739638116

[4,16,196,1156,64516,440896,26173456,340254916, 14809429636,787326134596,56199671262736, 3984666393117796,468395620836767716, 9526636662047700196,659973251187594258916, 205358215375529739638116]

[4,16,196,1156,64516,440896,26173456,340254916,
 14809429636,787326134596,56199671262736,
 3984666393117796,468395620836767716,
 9526636662047700196,659973251187594258916,
 205358215375529739638116]