# A181892 (b-file synthesized from sequence entry)
4 25
5 841
6 32041
7 1585081
8 101586241
9 8229936961
10 823010025601
11 99584412681601
12 14340158060659201
13 2423486749613529601
14 475003403490910694401
15 106875765794608626816001
16 27360196043576729389056001
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18 2561899316737326995063771136001