Starting positions of strings of seven 9's in the decimal expansion of Pi.

Terms

a(0) =1722776a(1) =3389380a(2) =4313727a(3) =5466169a(4) =14593770a(5) =15256174a(6) =20202676a(7) =36356642a(8) =36356643a(9) =39375939a(10) =54971455a(11) =66780105a(12) =66780106a(13) =78088568a(14) =123921866a(15) =125564426a(16) =174904193a(17) =195530904a(18) =196790272a(19) =209136149a(20) =212168291a(21) =219228757a(22) =242798761a(23) =249686197a(24) =252761434a(25) =270520788