%I #16 Apr 17 2024 15:04:15
%S 1,1,-1,1,1,1,-2,2,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,1,1,-1,1,
%T -1,1,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-1,-1,2,-2,2,1,-2,2,-2,2,-2,
%U 2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2,-2,2
%N a(n) = (A370952(n+1) - A370952(n)) /(2*n+1).
%H Chai Wah Wu, <a href="/A370975/b370975.txt">Table of n, a(n) for n = 1..10000</a>
%o (Python)
%o from itertools import count, islice
%o def A370975_gen(): # generator of terms
%o a, aset = 1, {0,1}
%o for p in count(3,2):
%o for b in count(a%p,p):
%o if b not in aset:
%o aset.add(b)
%o yield (b-a)//p
%o a = b
%o break
%o A370095_list = list(islice(A370975_gen(),20)) # _Chai Wah Wu_, Apr 17 2024
%Y Cf. A370952, A372052.
%K sign
%O 1,7
%A _N. J. A. Sloane_, Apr 17 2024