Sums of 3 distinct powers of 5.

Terms

a(0) =31a(1) =131a(2) =151a(3) =155a(4) =631a(5) =651a(6) =655a(7) =751a(8) =755a(9) =775a(10) =3131a(11) =3151a(12) =3155a(13) =3251a(14) =3255a(15) =3275a(16) =3751a(17) =3755a(18) =3775a(19) =3875a(20) =15631a(21) =15651a(22) =15655a(23) =15751a(24) =15755a(25) =15775a(26) =16251a(27) =16255a(28) =16275a(29) =16375