[1,4,17,76,353,1684,8177,40156,198593,986404, 4912337,24502636,122336033,611148724,3054149297, 15265963516,76315468673,381534296644, 1907542343057,9537324294796,47685459212513, 238423809278164,1192108586037617,5960511549128476]