One of the two successive approximations up to 5^n for the 5-adic integer sqrt(-4). These are the 4 mod 5 numbers (except for n=0).

A269590

One of the two successive approximations up to 5^n for the 5-adic integer sqrt(-4). These are the 4 mod 5 numbers (except for n=0).

Terms

    a(0) =0a(1) =4a(2) =14a(3) =114a(4) =364a(5) =989a(6) =13489a(7) =13489a(8) =169739a(9) =560364a(10) =2513489a(11) =2513489a(12) =2513489a(13) =246654114a(14) =3908763489a(15) =22219310364a(16) =52736888489a(17) =52736888489

External references