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Interleave A000861\{0} and A247359: positive numbers with English name ending in a vowel resp. consonant.
2

%I #16 Sep 28 2014 15:59:03

%S 1,4,2,6,3,7,5,8,9,10,12,11,21,13,22,14,23,15,25,16,29,17,31,18,32,19,

%T 33,20,35,24,39,26,41,27,42,28,43,30,45,34,49,36,51,37,52,38,53,40,55,

%U 44,59,46,61,47,62,48,63,50,65,54,69,56,71,57,72,58,73,60,75,64,79,66,81,67,82,68,83,70,85,74,89,76,91,77,92,78,93,80,95,84,99

%N Interleave A000861\{0} and A247359: positive numbers with English name ending in a vowel resp. consonant.

%C A permutation of the positive integers.

%C See A247362 for a variant defined on the nonnegative integers.

%F a(2n)=A247362(2n-1), a(2n-1) = A247362(2n).

%e Every other term is taken from the set A000861 \ {0} = {onE, twO, threE, fivE, ninE, twelvE, ...} resp. from A247359 = {fouR, siX, seveN, eighT, teN, eleveN, ...}

%Y Cf. A000861, A247359, A247362.

%K nonn,word

%O 1,2

%A _M. F. Hasler_, Sep 14 2014