Distance of closest integer power of 10 to the n-th power of 2.

Terms

a(0) =0a(1) =1a(2) =3a(3) =2a(4) =6a(5) =22a(6) =36a(7) =28a(8) =156a(9) =412a(10) =24a(11) =1048a(12) =3096a(13) =1808a(14) =6384a(15) =22768a(16) =34464a(17) =31072a(18) =162144a(19) =424288a(20) =48576a(21) =1097152a(22) =3194304a(23) =1611392a(24) =6777216a(25) =23554432a(26) =32891136a(27) =34217728a(28) =168435456a(29) =436870912