[4,18,81,340,1238,3891,10761,26764,60988,129236, 257653,487744,883142,1538541,2591269,4236040, 6743492,10483190,15951849,23807612,34911302, 50375655,71623633,100457012,139136540,190475064, 257945133,345802696]