@_=(3,2,20,14,119,84,696,492,4059,2870,23660,16730,137903,97512,803760,568344,4684659,3312554,27304196,19306982,159140519,112529340,927538920,655869060);
print"n = ",shift@_," , k = ",shift@_,"\n"while@_