Numbers n such that the sum of the digits squared times the sum of the digits of n to some power equals n.
A257784
Numbers n such that the sum of the digits squared times the sum of the digits of n to some power equals n.
Terms
- a(0) =0a(1) =1a(2) =512a(3) =2511a(4) =4913a(5) =5832a(6) =17576a(7) =19683a(8) =24624a(9) =32144a(10) =37000a(11) =111616a(12) =382360a(13) =415000a(14) =420224a(15) =2219400a(16) =14041600a(17) =16328000a(18) =19300032a(19) =30681423a(20) =39203125a(21) =62025728a(22) =78535423a(23) =186836625a(24) =214292000a(25) =432265248a(26) =1120141312a(27) =3479669440a(28) =18529084125a(29) =25342447725
External references
- oeis: A257784