A354936 - OEIS

A354936

Row 6 of A354940: Numbers k for which A345992(k) = 6, divided by 6.

7, 13, 19, 25, 31, 37, 43, 49, 61, 67, 73, 79, 97, 103, 109, 121, 127, 139, 151, 157, 163, 169, 181, 193, 199, 211, 223, 229, 241, 271, 277, 283, 289, 307, 313, 331, 337, 343, 349, 361, 367, 373, 379, 397, 409, 421, 433, 439, 457, 463, 487, 499, 523, 529, 541, 547, 571, 577, 601, 607, 613, 619, 625, 631, 643, 661

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

MATHEMATICA

q[n_] := Module[{m = 1}, While[!Divisible[m*(m + 1), 6*n], m++]; GCD[6*n, m] == 6]; Select[Range[660], q] (* Amiram Eldar, Jun 17 2022 *)

PROG

(PARI) A354936(n) = A354940sq(6, n);

CROSSREFS

Row 6 of A354940.

Apparently a subsequence of A016921.