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 A239630 Factored over the Gaussian integers, the least number having n prime factors, excluding units 1, -1, i, and -i. 2
 2, 5, 10, 30, 130, 390, 2210, 6630, 46410, 192270, 1345890, 7113990, 49797930, 291673590, 2041715130 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS From Amiram Eldar, Jun 27 2020: (Start) Indices of records of A086275. Also, numbers with a record number of unitary divisors in Gaussian integers (A332476). (End) LINKS MATHEMATICA nn = 12; t = Table[0, {nn}]; n = 0; found = 0; While[found < nn, n++; f = FactorInteger[n, GaussianIntegers -> True]; cnt = Length[f]; If[MemberQ[{-1, I, -I}, f[[1, 1]]], cnt--]; If[cnt <= nn && t[[cnt]] == 0, t[[cnt]] = n; found++]]; t CROSSREFS Cf. A001221, A001222 (integer factorizations). Cf. A078458, A086275 (Gaussian factorizations). Cf. A239627 (number of Gaussian factors of n, including units). Cf. A239628 (similar to this sequence, but count all prime factors). Cf. A239629 (number of distinct factors, including units). Cf. A332476. Sequence in context: A006404 A101957 A047113 * A239629 A155580 A226963 Adjacent sequences:  A239627 A239628 A239629 * A239631 A239632 A239633 KEYWORD nonn,more AUTHOR T. D. Noe, Mar 31 2014 EXTENSIONS a(13)-a(15) from Amiram Eldar, Jun 27 2020 STATUS approved

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Last modified June 13 10:10 EDT 2021. Contains 344981 sequences. (Running on oeis4.)