Primes 10k + 9 at the end of the maximal gaps in A269261.

Terms

a(0) =29a(1) =59a(2) =349a(3) =1229a(4) =3889a(5) =13619a(6) =15139a(7) =25169a(8) =50789a(9) =90989a(10) =91909a(11) =167729a(12) =422029a(13) =436279a(14) =528289a(15) =623669a(16) =1676569a(17) =5734439a(18) =9691439a(19) =31068619a(20) =35902579a(21) =40296209a(22) =47436509a(23) =59136419a(24) =156736049a(25) =283375579a(26) =410705059a(27) =603776759a(28) =1008310249a(29) =1036102069