A354935 Row 5 of A354940: Numbers k for which A345992(k) = 5, divided by 5.

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).

Links

Table of n, a(n) for n=1..70.

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.

Cf. A016861, A016885, A344005, A345992.

Sequence in context: A286988 A090848 A184657 * A310136 A310137 A157017

Adjacent sequences: A354932 A354933 A354934 * A354936 A354937 A354938

Keyword

nonn

Author

Antti Karttunen, Jun 15 2022

Status

approved