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 A348780 Partial sums of A347113. 2
 1, 5, 15, 37, 83, 177, 182, 184, 190, 204, 207, 215, 227, 253, 262, 277, 295, 333, 346, 353, 369, 403, 423, 447, 477, 539, 560, 571, 598, 630, 666, 740, 765, 793, 851, 969, 986, 1019, 1059, 1141, 1307, 1641, 1676, 1715, 1757, 1843, 1872, 1916, 1964, 2020, 2039, 2084, 2107, 2157, 2211, 2271, 2393 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Needs an estimate for the asymptotic growth rate. LINKS Stefano Spezia, Table of n, a(n) for n = 1..10000 PROG (Python) from math import gcd def A348780(n): j, nset, m, s = 2, {1}, 2, 1 for _ in range(n-1): k = m while k == j or gcd(k, j) == 1 or k in nset: k += 1 j = k+1 s += k nset.add(k) while m in nset: m += 1 return s # Chai Wah Wu, Nov 13 2021 CROSSREFS Cf. A347113. Sequence in context: A146797 A213487 A005491 * A142964 A050488 A188282 Adjacent sequences: A348777 A348778 A348779 * A348781 A348782 A348783 KEYWORD nonn AUTHOR N. J. A. Sloane, Nov 13 2021 STATUS approved

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Last modified March 1 16:12 EST 2024. Contains 370442 sequences. (Running on oeis4.)