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A228689 as a simple table

na(n)
01
128
2992
316256
4523264
569524373504
667100672
77767211311104
83014494287036416
92303837503821447168
10341653284209033216
11798366828940770681028608
1211852230872517975212032
1391678339751618435453288448
141986677733776616536315084668928
15284423744326342962334231917756416

[1,28,992,16256,523264,69524373504,67100672,
 7767211311104,3014494287036416,
 2303837503821447168,341653284209033216,
 798366828940770681028608,11852230872517975212032,
 91678339751618435453288448,
 1986677733776616536315084668928,
 284423744326342962334231917756416]