A067987 - OEIS

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A067987 as a simple table

n	a(n)
0	76
1	351
2	872
3	1943
4	3980
5	7808
6	14838
7	27581
8	50404
9	90905
10	162214
11	286944
12	503888
13	879387
14	1526560
15	2637787
16	4539472
17	7784224
18	13305786
19	22679065
20	38555996
21	65395261
22	110682602
23	186969408
24	315274900

[76,351,872,1943,3980,7808,14838,27581,50404, 90905,162214,286944,503888,879387,1526560,2637787, 4539472,7784224,13305786,22679065,38555996, 65395261,110682602,186969408,315274900]