A085896 - OEIS

A085896

Group the natural numbers such that the product of the n-th group is divisible by 2^n . (1), (2) (3,4), (5,6,7,8), (9,10,11,12,13,14,),(15,16,17,18),... Sequence contains the number of terms in each group.

1, 1, 2, 4, 6, 4, 6, 8, 10, 10, 12, 14, 12, 14, 16, 14, 18, 18, 20, 18, 22, 22, 20, 24, 24, 28, 28, 26, 30, 32, 32, 30, 34, 34, 36, 34, 40, 40, 38, 40, 42, 42, 44, 42, 42, 46, 48, 48, 48, 52, 48, 52, 54, 54, 52, 60, 56, 58, 58, 58, 62, 64, 64, 62, 66, 66, 68, 66, 72, 72, 72, 74

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..71.

CROSSREFS

Cf. A085895, A085897, A085898.

Sequence in context: A138125 A098793 A083220 * A351491 A107701 A293812

Adjacent sequences: A085893 A085894 A085895 * A085897 A085898 A085899

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 10 2003

EXTENSIONS

More terms from Ray Chandler, Sep 13 2003

STATUS

approved