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A186351
Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) before g(j) when f(i)=g(j), where f and g are the odd numbers and the triangular numbers. Complement of A186350.
5
2, 4, 6, 9, 13, 17, 21, 26, 32, 38, 44, 51, 59, 67, 75, 84, 94, 104, 114, 125, 137, 149, 161, 174, 188, 202, 216, 231, 247, 263, 279, 296, 314, 332, 350, 369, 389, 409, 429, 450, 472, 494, 516, 539, 563, 587, 611, 636, 662, 688, 714, 741, 769, 797, 825, 854, 884, 914, 944, 975, 1007, 1039, 1071, 1104, 1138, 1172, 1206, 1241, 1277, 1313, 1349, 1386, 1424, 1462, 1500
OFFSET
1,1
COMMENTS
See A186350.
FORMULA
See A186350.
EXAMPLE
First, write
1..3..5..7..9..11..13..15..17..21..23.. (odds)
1..3....6.....10.......15......21.... (triangular)
Then replace each number by its rank, where ties are settled by ranking the odd number before the triangular:
a = (1,3,5,7,8,10,11,12,14,....) = A186350
b = (2,4,6,9,13,17,21,26,32,...) = A186351.
MATHEMATICA
(See A186350.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Feb 18 2011
STATUS
approved