# A206820 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 42 5 914 6 23694 7 1048542 8 45379878 9 3272115926 10 257662344206 11 27726935045366 12 3101635433302996 13 474878584235678020 14 76786899439922296204 15 15844064187141655171020 16 3326909755872288926885670 17 897661138669999282018222470 18 246381314116108359863665821750