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Search: id:A103681
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A103681 Numbers m such that in binary representation m! doesn't contain 7!. +0
6
0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73 (list; graph; listen)
OFFSET

1,3

COMMENT

Complement of A103680: A103675(a(n))=0, A103675(A103680(n))=1.

LINKS

Index entries for sequences related to factorial numbers

Index entries for sequences related to binary expansion of n

CROSSREFS

Cf. A102730, A036603, A007088, A000142, A103677, A103679.

Sequence in context: A005941 A075164 A023841 this_sequence A039265 A073599 A039204

Adjacent sequences: A103678 A103679 A103680 this_sequence A103682 A103683 A103684

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 12 2005

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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