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A032943
Numbers whose base-8 representation Sum_{i=0..m} d(i)*8^(m-i) has d(i)=0 for all odd i.
1
1, 2, 3, 4, 5, 6, 7, 8, 16, 24, 32, 40, 48, 56, 64, 65, 66, 67, 68, 69, 70, 71, 128, 129, 130, 131, 132, 133, 134, 135, 192, 193, 194, 195, 196, 197, 198, 199, 256, 257, 258, 259, 260, 261, 262, 263, 320, 321, 322, 323, 324, 325, 326
OFFSET
1,2
LINKS
MAPLE
b:= 8:
f:= proc(n, j) local L, m;
L:= convert(n, base, b);
m:= nops(L);
j*add(L[i+1]*b^(2*i), i=0..m-1)
end proc:
seq(seq(seq(f(n, j), n=b^k..b^(k+1)-1), j=[1, b]), k=0..2); # Robert Israel, Nov 16 2020
CROSSREFS
Cf. A007094 (numbers in base 8).
Sequence in context: A032863 A032887 A023790 * A273735 A257735 A269356
KEYWORD
nonn,base
EXTENSIONS
Definition corrected by Robert Israel, Nov 16 2020
STATUS
approved