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A304376 as a simple table

na(n)
172
2192
3432
4912
51872
63792
77632
815312
930672
1061392
11122832
12245712
13491472
14982992
151966032
163932112
177864272
1815728592
1931457232
2062914512
21125829072
22251658192
23503316432
241006632912
252013265872
264026531792
278053063632
2816106127312
2932212254672
3064424509392
31128849018832

[72,192,432,912,1872,3792,7632,15312,30672,61392,
 122832,245712,491472,982992,1966032,3932112,
 7864272,15728592,31457232,62914512,125829072,
 251658192,503316432,1006632912,2013265872,
 4026531792,8053063632,16106127312,32212254672,
 64424509392,128849018832]