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 A228132 First differences of A014311. 1
 4, 2, 1, 5, 2, 1, 3, 1, 2, 7, 2, 1, 3, 1, 2, 5, 1, 2, 4, 11, 2, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 19, 2, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 17, 1, 2, 4, 8, 16, 35, 2, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 17, 1, 2, 4, 8, 16, 33, 1, 2, 4, 8, 16, 32 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The records are: 4, 5, 7, 11, 19, 35, 67, ... and they occur at these indices of A014311: 11, 19, 35, 67, ... (for both, see A062709). - Michel Marcus, Jun 11 2015 The record (maximum) among the first 1000 terms is 65539. - Harvey P. Dale, May 29 2018 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA Differences[Select[Range[500], DigitCount[#, 2, 1]==3&]] (* Harvey P. Dale, May 29 2018 *) PROG (JavaScript) oo=0; for (i=1; i<500; i++) { s=i.toString(2); o=0; for (j=0; j

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Last modified February 4 13:47 EST 2023. Contains 360055 sequences. (Running on oeis4.)