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A248901 Numbers k such that A248891(k) = 1. 3
1, 2, 3, 4, 5, 20, 29, 30, 2059, 5987, 7119, 20165, 151819, 14984624, 105181798 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
If k is in {1, 2, 3, 4, 29, ...} then both numbers k and k+1 are in the sequence.
LINKS
PROG
(PARI) lista(nn) = {my(c=0, q=r=5, s=3, t); forprime(p=9, nn, if(p-2==q, if((t=s^(1+1/c++))>r && t<q, print1(c, ", ")); s=r; r=q); q=p); } \\ Jinyuan Wang, Nov 28 2020
CROSSREFS
Sequence in context: A329579 A024635 A217679 * A280849 A037400 A080695
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
a(13)-a(15) from Jinyuan Wang, Nov 28 2020
STATUS
approved

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Last modified June 22 12:42 EDT 2024. Contains 373571 sequences. (Running on oeis4.)