Primes which are the sum of three positive 7th powers.

Terms

a(0) =3a(1) =257a(2) =82499a(3) =823799a(4) =1119863a(5) =2099467a(6) =4782971a(7) =5063033a(8) =5608699a(9) =6880249a(10) =7160057a(11) =10018571a(12) =10078253a(13) =10094509a(14) =10279937a(15) =10389481a(16) =10823671a(17) =19503683a(18) =20002187a(19) =20388839a(20) =24782969a(21) =31584323a(22) =35850379a(23) =36189869a(24) =37931147a(25) =50614777a(26) =57416131a(27) =62765029a(28) =64845797a(29) =68355029