One of the two successive approximations up to 5^n for the 5-adic integer sqrt(-4). These are the 1 mod 5 numbers, except for n = 0.

A268922

One of the two successive approximations up to 5^n for the 5-adic integer sqrt(-4). These are the 1 mod 5 numbers, except for n = 0.

Terms

    a(0) =0a(1) =1a(2) =11a(3) =11a(4) =261a(5) =2136a(6) =2136a(7) =64636a(8) =220886a(9) =1392761a(10) =7252136a(11) =46314636a(12) =241627136a(13) =974049011a(14) =2194752136a(15) =8298267761a(16) =99851002136a(17) =710202564636a(18) =710202564636

External references