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A028687 Sorted k-factorial numbers (numbers of form k-1 excluded). 2
1, 3, 16, 21, 45, 96, 175, 288, 315, 416, 441, 640, 891, 1200, 1573, 2016, 2535, 2835, 3136, 3825, 4608, 5491, 6480, 7581, 8800, 9765, 10143, 11616, 11904, 13225, 14976, 16875, 18928, 21141, 23520, 26071, 28800, 31713, 33280, 34816, 37625 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..200 (n = 42..200 corrected by Sean A. Irvine)
Sean A. Irvine, Java program (github)
FORMULA
The set { Product_{j=1..m} (k^j-1) for integers m > 1 and k > 1 }. - Sean A. Irvine, Feb 11 2020
CROSSREFS
Cf. A028688.
Sequence in context: A031071 A346072 A218625 * A201274 A101132 A153723
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset corrected by Sean A. Irvine, Feb 11 2020
STATUS
approved

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Last modified June 16 18:41 EDT 2024. Contains 373432 sequences. (Running on oeis4.)