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A205140 Least s(k) such that n divides s(k)-s(j) for some j<k, where s(j)=j(3j-1)/2, the j-th pentagonal number. 2
5, 5, 22, 5, 22, 35, 12, 51, 145, 22, 12, 70, 35, 92, 35, 51, 22, 145, 70, 92, 22, 92, 35, 70, 51, 247, 1162, 117, 51, 35, 176, 715, 117, 35, 70, 145, 247, 477, 51, 92, 92, 176, 330, 330, 247, 51, 117, 70, 247, 51, 247, 330, 145, 1247, 145, 117, 92, 70 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
For a guide to related sequences, see A204892.
LINKS
Table of n, a(n) for n=1..58.
MATHEMATICA
(See the program at A205138.)
CROSSREFS
Cf. A204892, A205138.
Sequence in context: A097336 A365104 A014619 * A097016 A183257 A255456
Adjacent sequences: A205137 A205138 A205139 * A205141 A205142 A205143
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 25 2012
STATUS
approved

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Last modified August 30 09:28 EDT 2024. Contains 375532 sequences. (Running on oeis4.)