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A370975

a(n) = (A370952(n+1) - A370952(n)) /(2*n+1).

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, -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, 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 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,7`
	LINKS	`Chai Wah Wu, Table of n, a(n) for n = 1..10000`
	PROG	`(Python)` `from itertools import count, islice` `def A370975_gen(): # generator of terms` `a, aset = 1, {0, 1}` `for p in count(3, 2):` `for b in count(a%p, p):` `if b not in aset:` `aset.add(b)` `yield (b-a)//p` `a = b` `break` `A370095_list = list(islice(A370975_gen(), 20)) # Chai Wah Wu, Apr 17 2024`
	CROSSREFS	`Cf. A370952, A372052.` `Sequence in context: A141044 A064284 A371807 * A030409 A030407 A287056` `Adjacent sequences: A370972 A370973 A370974 * A370976 A370977 A370978`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane, Apr 17 2024`
	STATUS	`approved`

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Last modified August 6 06:14 EDT 2024. Contains 374960 sequences. (Running on oeis4.)