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A051466 Largest least prime signature, A025487(k), dividing A025487(n). k < n. 0
1, 2, 2, 4, 6, 8, 12, 6, 16, 12, 24, 30, 32, 36, 48, 60, 64, 72, 60, 96, 30, 72, 120, 128, 144, 180, 192, 210, 216, 240, 256, 288, 360, 384, 420, 432, 180, 480, 512, 360, 576, 420, 432, 720, 768, 840, 864, 900, 960, 1024, 1080, 1152, 210, 1260, 1296, 1440 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Note that A036041(A025487(n)) = A036041( a(n) ) + 1 since A025487(n) /a(n) is prime.

EXAMPLE

A025487 = 1 2 4 6 8 12 16 24 30 32 36 ... a(n)= 1 2 2 4 6 8 12 6 16 12 ... (12 divides 36 but 16 through 32 do not.)

CROSSREFS

Cf. A036041, A034776.

Sequence in context: A116859 A179999 A147982 * A080015 A080054 A108494

Adjacent sequences:  A051463 A051464 A051465 * A051467 A051468 A051469

KEYWORD

easy,nice,nonn

AUTHOR

Alford Arnold (Alford1940)

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Last modified February 14 17:43 EST 2012. Contains 205651 sequences.