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 A023690 Numbers with exactly 8 ones in binary expansion. 14
 255, 383, 447, 479, 495, 503, 507, 509, 510, 639, 703, 735, 751, 759, 763, 765, 766, 831, 863, 879, 887, 891, 893, 894, 927, 943, 951, 955, 957, 958, 975, 983, 987, 989, 990, 999, 1003, 1005, 1006, 1011, 1013, 1014, 1017 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Ivan Neretin, Table of n, a(n) for n = 1..10000 FORMULA a(n+1)=A057168(a(n)). - M. F. Hasler, Aug 27 2014 MATHEMATICA Select[ Range[ 255, 1024 ], (Count[ IntegerDigits[ #, 2 ], 1 ]==8)& ] PROG (PARI) is_A023690(n)=hammingweight(n)==8 \\ M. F. Hasler, Aug 27 2014 (PARI) print1(t=2^8-1); for(i=2, 50, print1(", "t=A057168(t))) \\ M. F. Hasler, Aug 27 2014 CROSSREFS Cf. A000079, A018900, A014311, A014312, A014313, A023688, A023689, A023690, A023691 (Hamming weight = 1, 2, ..., 9), A057168. Sequence in context: A028526 A132828 A257021 * A101745 A182221 A053339 Adjacent sequences:  A023687 A023688 A023689 * A023691 A023692 A023693 KEYWORD nonn,base,easy AUTHOR STATUS approved

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