A080466 Multiples of 11 in which the even positioned digits from left are even and the odd positioned ones are odd.
121, 143, 165, 187, 341, 363, 385, 561, 583, 781, 1012, 1034, 1056, 1078, 1210, 1232, 1254, 1276, 1298, 1430, 1452, 1474, 1496, 1650, 1672, 1694, 1870, 1892, 3014, 3036, 3058, 3212, 3234, 3256, 3278, 3410, 3432, 3454, 3476, 3498, 3630, 3652, 3674, 3696
Offset: 1
Links
- Robert Israel, Table of n, a(n) for n = 1..10000
Programs
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Maple
filter:= proc(n) local L,L1,L2; L:= convert(n,base,10); L1:= {seq(L[-i],i=2..nops(L),2)}; L2:= {seq(L[-i],i=1..nops(L),2)}; andmap(type,L1,even) and andmap(type,L2,odd) end proc: select(filter, [seq(i,i=11..10000,11)]); # Robert Israel, Mar 06 2018
Extensions
More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003