Denominators associated with A120031.

Terms

a(0) =1a(1) =2a(2) =3a(3) =9a(4) =63a(5) =7a(6) =77a(7) =539a(8) =2695a(9) =24255a(10) =92169a(11) =48279a(12) =370139a(13) =370139a(14) =1427679a(15) =4283037a(16) =132774147a(17) =4023459a(18) =3129357a(19) =59457783a(20) =2318853537a(21) =48695924277a(22) =190356794901a(23) =486467364747a(25) =155537184647a(26) =610184339769