Ramaswami, V. On the number of positive integers less than \(x\) and free of prime divisors greater than \(x^c\). (English) Zbl 0035.31502 Bull. Am. Math. Soc. 55, 1122-1127 (1949). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 9 Documents Keywords:Number theory × Cite Format Result Cite Review PDF Full Text: DOI Online Encyclopedia of Integer Sequences: Numbers n that are sqrt(n-1)-smooth: largest prime factor of n (=A006530(n)) < sqrt(n).