A330685 Primorial deflation of highly factorable numbers: a(n) is the unique integer x such that A108951(x) = A033833(n).

1, 4, 8, 6, 16, 12, 9, 24, 18, 48, 20, 36, 96, 27, 40, 72, 30, 54, 80, 144, 60, 160, 45, 288, 120, 90, 240, 180, 84, 480, 200, 360, 168, 960, 270, 400, 126, 720, 336, 540, 800, 252, 1440, 672, 280, 1080, 504, 1344, 378, 560, 1008, 420, 2688, 2400, 756, 1120, 2016, 840, 1512, 630, 4032, 1680, 3024, 1260, 2268, 3360, 6048, 2520, 4536, 6720

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..235 (computed from the b-file of A033833)

Formula

a(n) = A329900(A033833(n)).

Crossrefs

Cf. A001055, A028422, A033833, A108951, A329900.

Sequence in context: A335159 A064494 A119800 * A063723 A323057 A028269

Adjacent sequences: A330682 A330683 A330684 * A330686 A330687 A330688

Keyword

nonn

Author

Antti Karttunen, Dec 28 2019

Status

approved