Let n be the number whose square n^2 has the decimal expansion { d(1) d(2) ... d(D) }, and let q be the corresponding number whose decimal expansion is { d(2) d(3) ... d(D) d(1)}. Sequence lists numbers n dividing q.
A177928
Let n be the number whose square n^2 has the decimal expansion { d(1) d(2) ... d(D) }, and let q be the corresponding number whose decimal expansion is { d(2) d(3) ... d(D) d(1)}. Sequence lists numbers n dividing q.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =9a(4) =27a(5) =33a(6) =66a(7) =99a(8) =123a(9) =246a(10) =271a(11) =333a(12) =351a(13) =407a(14) =429a(15) =462a(16) =481a(17) =518a(18) =546a(19) =567a(20) =666a(21) =693a(22) =702a(23) =715a(24) =777a(25) =814a(26) =819a(27) =924a(28) =936a(29) =999
External references
- oeis: A177928