%I #12 Jul 21 2017 00:56:44
%S 1,2,3,1,4,1,2,5,2,1,3,1,6,1,3,1,2,4,2,1,7,1,2,4,2,1,3,1,5,1,3,1,2,8,
%T 2,1,3,1,5,1,3,1,2,4,2,1,6,1,2,4,2,1,3,1,9,1,3,1,2,4,2,1,6,1,2,4,2,1,
%U 3,1,5,1,3,1,2,7,2,1,3,1,5,1,3,1,2,4
%N Beginning column count at 1, the index of the column which contains n in Clark Kimberling's even first column Stolarsky array.
%H C. Kimberling, <a href="http://www.fq.math.ca/Scanned/32-4/kimberling.pdf">The first column of an interspersion</a>, Fibonacci Quarterly 32 (1994), pp. 301-314.
%e The even first column stolarsky array (EFC array), northwest corner:
%e 1......2.....3.....5.....8....13....21....34....55....89...144 ...
%e 4......7....11....18....29....47....76...123...199...322...521
%e 6......9....15....24....39....63...102...165...267...432...699
%e 10....17....27....44....71...115...186...301...487...788..1275
%e 12....19....31....50....81...131...212...343...555...898..1453
%e 14....23....37....60....97...157...254...411...665..1076..1741
%e 16....25....41....66...107...173...280...453...733..1186..1919
%e 20....33....53....86...139...225...364...589...953..1542..2673
%e 22....35....57....92...149...241...390...631..1021..1652..2673
%K nonn
%O 1,2
%A _Casey Mongoven_, Nov 07 2011