а(n) = 4n-3
a(1) = 4*1 - 3 = 4-3 = 1
a(2) = 4*2 - 3 = 8-3 = 5
a(3) = 4*3 - 3 = 12-3 = 9
a(4) = 4*4 - 3 = 16-3 = 13
a(5) = 4*5 - 3 = 20-3 = 17
А1 4*1-3=4-3=1
А2 4*2-3=8-3=5
А3 4*3-3=12-3=9
А4 4*4-3=16-3=13
А5 4*5-3=20-3=17
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Verified answer
а(n) = 4n-3
a(1) = 4*1 - 3 = 4-3 = 1
a(2) = 4*2 - 3 = 8-3 = 5
a(3) = 4*3 - 3 = 12-3 = 9
a(4) = 4*4 - 3 = 16-3 = 13
a(5) = 4*5 - 3 = 20-3 = 17
А1 4*1-3=4-3=1
А2 4*2-3=8-3=5
А3 4*3-3=12-3=9
А4 4*4-3=16-3=13
А5 4*5-3=20-3=17