A358778 Positions of positive terms in A358777, which is the Dirichlet inverse of A353557.

1, 135, 189, 225, 297, 315, 351, 375, 441, 459, 495, 513, 525, 585, 621, 693, 735, 765, 783, 819, 825, 837, 855, 875, 975, 999, 1029, 1035, 1071, 1089, 1107, 1155, 1161, 1197, 1225, 1269, 1275, 1287, 1305, 1365, 1375, 1395, 1425, 1431, 1449, 1521, 1593, 1617, 1625, 1647, 1665, 1683, 1715, 1725, 1785

Offset

1,2

Comments

Question: Is A046317 \ (A030514\{16}) a subsequence of this sequence?

30375 = 3^5 * 5^3 is the first term with more than 4 prime factors (when counted with multiplicity).

Links

Antti Karttunen, Table of n, a(n) for n = 1..20000

Prog

(PARI) isA358778(n) = (A358777(n)>0);

Crossrefs

Cf. A046317, A353557, A358777.

Sequence in context: A296451 A096593 A050215 * A359597 A218417 A348696

Adjacent sequences: A358775 A358776 A358777 * A358779 A358780 A358781

Keyword

nonn

Author

Antti Karttunen, Dec 23 2022

Status

approved