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A328836
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Numbers k such that A276086(k) is a sum of distinct primorial numbers.
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6
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0, 1, 2, 3, 4, 9, 30, 39, 212, 249, 421, 2312, 2559, 30045, 32589, 510511, 512820, 543099, 1021050, 9729723, 10242789, 233335659, 446185742
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OFFSET
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1,3
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COMMENTS
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Numbers k such that A276086(k) is in A276156, i.e., numbers k for which A328828(A276086(k)) is zero, i.e., numbers k such that in the primorial base expansion of A276086(k) there are no digits larger than 1.
Numbers k for which A276087(k) is squarefree.
No more terms below 2^31.
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LINKS
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PROG
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(PARI)
A276086(n) = { my(m=1, p=2); while(n, m *= (p^(n%p)); n = n\p; p = nextprime(1+p)); (m); };
A328828(n) = { my(i=1, p=2); while(n, if((n%p)>1, return(i)); i++; n = n\p; p = nextprime(1+p)); (0); };
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CROSSREFS
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Sequence A328833 sorted into ascending order.
All the terms of A328313 are included in this sequence, like also in A328837.
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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