Starting positions of strings of six 7's in the decimal expansion of Pi.

Terms

a(0) =399579a(1) =452071a(2) =1006927a(3) =2309218a(4) =2376567a(5) =3346228a(6) =3346229a(7) =3775287a(8) =3775288a(9) =4431395a(10) =5267503a(11) =6052100a(12) =6314342a(13) =9569325a(14) =9891884a(15) =10567998a(16) =12306442a(17) =12389948a(18) =13761115a(19) =13841285a(20) =13912716a(21) =14233532a(22) =14233533a(23) =14445874