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 A080466 Multiples of 11 in which the even positioned digits from left are even and the odd positioned ones are odd. 2
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Robert Israel, Table of n, a(n) for n = 1..10000 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 CROSSREFS Cf. A008593, A080467. Sequence in context: A319923 A020253 A182776 * A271630 A038511 A285784 Adjacent sequences: A080463 A080464 A080465 * A080467 A080468 A080469 KEYWORD base,nonn,look AUTHOR Amarnath Murthy, Mar 02 2003 EXTENSIONS More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003 STATUS approved

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Last modified June 3 10:25 EDT 2023. Contains 363110 sequences. (Running on oeis4.)