Engel expansion of zeta(7)=sum(i>0,1/i^7).

Terms

a(0) =1a(1) =120a(2) =523a(3) =1543a(4) =1615a(5) =9192a(6) =16003a(7) =21589a(8) =101625a(9) =148947a(10) =169047a(11) =362415a(12) =497588a(13) =745709a(14) =815536a(15) =4121913a(16) =59871203a(17) =199990957a(18) =309564563a(19) =361924763a(20) =1029742912a(21) =1571746050a(22) =7713398235a(23) =18093587867a(24) =81964002218a(25) =483653860925