Wypisz sześć początkowych wyrazów ciągu (an): a)  a1 = 1 an+1 = nan-1; n > 1 b)  a1 = 32; a2 = 64 an+2 = an+an+1/2; n > 1 c)  a1 = 1; a2 = 1 an+2 = (-1)^n*an-an+1; n > 1 d)  a1 = a2 = a3 = 1 an+3 = an+2 + an+1 + an; n > 1