Question: The language a ^ ( n ) b ^ ( n - 3 + k ) n > = 3 , k = 1 ,

The language a^(n)b^(n-3+k)n>=3,k=1,3,5,7... is generated by the unrestricted grammar G
S->AbB
A->aAb
bB->bbbB
aAb->aaa
B-> lambda
Use the Pumping Lemma to show L is not regular, Is this language Context Free? (e.g. there is a Context Free Grammar for L(G) or there is an NPDA for L(G))

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