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A103737 as a simple table

n a(n)
1 0
2 0
3 3
4 7
5 76
6 164
7 1679
8 3611
9 36872
10 79288
11 809515
12 1740735
13 17772468
14 38216892
15 390184791
16 839030899
17 8566292944
18 18420462896
19 188068259987
20 404411152823
21 4128935426780
22 8878624899220
23 90648511129183
24 194925336630027
25 1990138309415256
26 4279478780961384
27 43692394296006459

[0,0,3,7,76,164,1679,3611,36872,79288,809515,
 1740735,17772468,38216892,390184791,839030899,
 8566292944,18420462896,188068259987,404411152823,
 4128935426780,8878624899220,90648511129183,
 194925336630027,1990138309415256,4279478780961384,
 43692394296006459]

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Last modified January 31 05:56 EST 2023. Contains 359947 sequences. (Running on oeis4.)