The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A235590

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A235590

Sum of parts of the form 10...0 with nonnegative number of zeros in binary representation of c-squarefree numbers (A233564) as the corresponding powers of 2.
(history; published version)

#13 by Michel Marcus at Wed Feb 05 11:06:57 EST 2014

STATUS

proposed

approved

#12 by Jon E. Schoenfield at Wed Feb 05 10:51:00 EST 2014

STATUS

editing

proposed

#11 by Jon E. Schoenfield at Wed Feb 05 10:50:58 EST 2014

COMMENTS

It is a subsequence Subsequence of A162439.

STATUS

approved

editing

#10 by N. J. A. Sloane at Fri Jan 24 10:34:39 EST 2014

STATUS

proposed

approved

#9 by Michel Marcus at Wed Jan 22 09:57:31 EST 2014

STATUS

editing

proposed

Discussion

Wed Jan 22

10:19

Vladimir Shevelev: Thank you, Michel.

#8 by Michel Marcus at Wed Jan 22 09:57:11 EST 2014

EXAMPLE

Let n=17, A233564(17)=37. In binary a concatenation of parts of the form 10...0 which gives 37 is (100)(10)(1). Thus a(17)= 4+2+1 = 7.

which gives 37 is (100)(10)(1). Thus a(17)= 4+2+1 = 7.

STATUS

proposed

editing

Discussion

Wed Jan 22

09:57

Michel Marcus: removed break

#7 by Vladimir Shevelev at Wed Jan 22 08:49:36 EST 2014

STATUS

editing

proposed

#6 by Peter J. C. Moses at Wed Jan 15 07:36:14 EST 2014

MATHEMATICA

bitPatt[n_]:=bitPatt[n]=Split[IntegerDigits[n, 2], #2==0&]; Map[Plus@@(Map[FromDigits[#, 2]&, bitPatt[#]])&, Select[Range[300], #==DeleteDuplicates[#]&[bitPatt[#]]&]] (* Peter J. C. Moses, Jan 15 2014 *)

STATUS

proposed

editing

Discussion

Wed Jan 22

07:43

OEIS Server: This sequence has not been edited or commented on for a week
yet is not proposed for review.  If it is ready for review, please
visit https://oeis.org/draft/A235590 and click the button that reads
"These changes are ready for review by an OEIS Editor."

Thanks.
  - The OEIS Server

#5 by Vladimir Shevelev at Sun Jan 12 13:45:11 EST 2014

STATUS

editing

proposed

#4 by Vladimir Shevelev at Sun Jan 12 13:45:00 EST 2014

NAME

Sum of parts of the form 10...0 with nonnegative number of zeros in binary representation of c-squarefree numbers (A233564(n) as the corresponding powers of 2.

STATUS

proposed

editing