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A354935
Row 5 of A354940: Numbers k for which A345992(k) = 5, divided by 5.
2
3, 6, 8, 11, 13, 16, 23, 26, 31, 36, 41, 43, 46, 51, 53, 56, 61, 71, 73, 81, 83, 86, 91, 96, 101, 103, 106, 113, 116, 121, 128, 131, 141, 146, 151, 163, 166, 171, 173, 176, 181, 191, 193, 196, 206, 211, 223, 226, 233, 241, 243, 251, 256, 263, 271, 276, 281, 283, 293, 301, 311, 313, 321, 326, 331, 343, 346, 353, 356, 361
OFFSET
1,1
COMMENTS
Apparently, all terms are either of the form 5k+1 (in A016861), or of the form 5k+3 (in A016885).
MATHEMATICA
q[n_] := Module[{m = 1}, While[!Divisible[m*(m + 1), 5*n], m++]; GCD[5*n, m] == 5]; Select[Range[360], q] (* Amiram Eldar, Jun 17 2022 *)
PROG
(PARI) A354935(n) = A354940sq(5, n);
CROSSREFS
Row 5 of A354940.
Sequence in context: A286988 A090848 A184657 * A310136 A310137 A157017
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jun 15 2022
STATUS
approved