OFFSET
0,1
COMMENTS
This square root of -2 in the 17-adic field ends with digit 7. The other, A322566, ends with digit 10 (A when written as a 17-adic number).
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
Wikipedia, p-adic number
FORMULA
EXAMPLE
The solution to x^2 == -2 (mod 17^4) such that x == 7 (mod 17) is x == 3492 (mod 17^4), and 3492 is written as C17 in heptadecimal, so the first four terms are 7, 1, 12 and 0.
PROG
(PARI) a(n) = truncate(sqrt(-2+O(17^(n+1))))\17^n
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Jianing Song, Aug 29 2019
STATUS
approved