Prime numbers which when written in base 7 have a composite digit-sum.

Terms

a(0) =4801a(1) =9547a(2) =9601a(3) =11311a(4) =11317a(5) =11941a(6) =11953a(7) =13033a(8) =13327a(9) =13669a(10) =13711a(11) =13963a(12) =13999a(13) =14011a(14) =14251a(15) =14293a(16) =14341a(17) =14347a(18) =14389a(19) =14401a(20) =15091a(21) =15427a(22) =15679a(23) =15727a(24) =15973a(25) =16057a(26) =16063a(27) =16069a(28) =16111a(29) =16267