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A019482 as a simple table

n a(n)
0 4
1 28
2 197
3 1387
4 9766
5 68764
6 484179
7 3409187
8 24004668
9 169020968
10 1190105509
11 8379736191
12 59003154006
13 415451286688
14 2925263479867
15 20597279875727
16 145028966176516
17 1021173725712004
18 7190258646781909

[4,28,197,1387,9766,68764,484179,3409187,24004668,
 169020968,1190105509,8379736191,59003154006,
 415451286688,2925263479867,20597279875727,
 145028966176516,1021173725712004,7190258646781909]

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Last modified November 24 15:00 EST 2014. Contains 249899 sequences.