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A341350 Numbers k for which A254049(k) [= A048673(2k-1)] is a multiple of 3. 3
2, 4, 7, 8, 10, 12, 14, 17, 18, 19, 22, 24, 26, 27, 32, 33, 34, 38, 39, 40, 42, 44, 47, 48, 49, 52, 55, 58, 59, 60, 62, 64, 66, 68, 70, 72, 74, 82, 83, 84, 86, 87, 88, 89, 91, 92, 93, 97, 102, 104, 105, 107, 108, 109, 110, 111, 112, 115, 117, 118, 121, 122, 126, 127, 128, 129, 132, 133, 134, 137, 139, 142, 144, 149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Numbers k for which A292251(2k-1) > 0.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..16399

Index entries for sequences computed from indices in prime factorization

PROG

(PARI)

A003961(n) = { my(f=factor(n)); for (i=1, #f~, f[i, 1] = nextprime(f[i, 1]+1)); factorback(f); }; \\ From A003961

A341346(n) = (((A003961(n+n-1)+1)/2)%3);

isA341350(n) = (0==A341346(n));

CROSSREFS

Positions of zeros in A341346.

Cf. A003961, A048673, A254049, A292251, A341349 (complement).

Sequence in context: A056231 A248637 A131346 * A047540 A116478 A207829

Adjacent sequences:  A341347 A341348 A341349 * A341351 A341352 A341353

KEYWORD

nonn

AUTHOR

Antti Karttunen, Feb 10 2021

STATUS

approved

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Last modified August 2 09:22 EDT 2021. Contains 346422 sequences. (Running on oeis4.)