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A186494 Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) before g(j) when f(i)=g(j), where f(i)=5i and g(j)=j-th pentagonal number. Complement of A186493. 4

%I #11 Apr 09 2015 15:00:15

%S 1,3,5,8,12,16,21,26,32,39,46,54,62,71,81,91,102,113,125,138,151,165,

%T 179,194,210,226,243,260,278,297,316,336,356,377,399,421,444,467,491,

%U 516,541,567,593,620,648,676,705,734,764,795,826,858,890,923,957,991,1026,1061,1097,1134,1171,1209,1247,1286,1326,1366,1407,1448,1490,1533,1576,1620,1664,1709,1755,1801,1848,1895,1943,1992,2041,2091,2141

%N Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) before g(j) when f(i)=g(j), where f(i)=5i and g(j)=j-th pentagonal number. Complement of A186493.

%e First, write

%e ....5..10..15..20..25..30..35..40.. (5i),

%e 1..5......12......22............35..(pentagonal numbers).

%e Then replace each number by its rank, where ties are settled by ranking 5i before the pentagonal number:

%e a=(2,4,6,7,9,10,11,13,14,15,17,...)=A186493,

%e b=(1,3,5,8,12,16,21,26,32,39,46,..)=A186494.

%t (See A186493.)

%Y Cf. A186350, A186493, A186495, A186496.

%K nonn

%O 1,2

%A _Clark Kimberling_, Feb 22 2011

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Last modified March 29 08:01 EDT 2024. Contains 371265 sequences. (Running on oeis4.)