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A103676 Numbers m such that in binary representation m! contains 5!. 5
5, 10, 12, 22, 23, 25, 27, 29, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A103677: A103673(a(n))=1, A103673(A103677(n))=0.

LINKS

Table of n, a(n) for n=1..70.

Index entries for sequences related to factorial numbers

Index entries for sequences related to binary expansion of n

MATHEMATICA

Select[Range[100], MemberQ[Partition[IntegerDigits[#!, 2], 7, 1], {1, 1, 1, 1, 0, 0, 0}]&] (* Harvey P. Dale, Apr 09 2012 *)

PROG

(PARI) is(n)=n=n!; while(n>119, my(e=valuation(n, 2), e1=valuation((n>>=e)+1, 2)); n>>=e1; if(e>2 && e1>3, return(1))); 2 \\ Charles R Greathouse IV, Apr 07 2013

CROSSREFS

Cf. A102730, A036603, A007088, A000142, A103678, A103680.

Sequence in context: A087920 A313373 A313374 * A313375 A276606 A296445

Adjacent sequences:  A103673 A103674 A103675 * A103677 A103678 A103679

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Feb 12 2005

STATUS

approved

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Last modified November 18 19:48 EST 2019. Contains 329288 sequences. (Running on oeis4.)