フィボナッチ数列

a_0 = 1 (slider from 1 to 30, step 1)
a_1 = 1 (slider from 1 to 30, step 1)
テキスト2: "a_0=" + a_0 + ""
a_2: a_0 + a_1
a_3: a_1 + a_2
a_4: a_2 + a_3
a_5: a_3 + a_4
a_6: a_4 + a_5
a_7: a_5 + a_6
テキスト3: "a_1=" + a_1 + ""
テキスト4: "a_2=" + a_0 + "+" + a_1 + "=" + a_2 + ""
テキスト5: "a_3=" + a_1 + "+" + a_2 + "=" + a_3 + ""
テキスト6: "a_4=" + a_2 + "+" + a_3 + "=" + a_4 + ""
テキスト7: "a_5=" + a_3 + "+" + a_4 + "=" + a_5 + ""
テキスト8: "a_6=" + a_4 + "+" + a_5 + "=" + a_6 + ""
テキスト9: "a_7=" + a_5 + "+" + a_6 + "=" + a_7 + ""