A042600 - OEIS

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A042600 as a simple table

n	a(n)
0	28
1	29
2	115
3	144
4	691
5	1526
6	5269
7	12064
8	17333
9	29397
10	76127
11	257778
12	591683
13	2624510
14	3216193
15	12273089
16	15489282
17	879672881
18	895162163
19	3565159370
20	4460321533
21	21406445502
22	47273212537
23	163226083113

[28,29,115,144,691,1526,5269,12064,17333,29397, 76127,257778,591683,2624510,3216193,12273089, 15489282,879672881,895162163,3565159370, 4460321533,21406445502,47273212537,163226083113]