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Fourth in a series of triangular subarrays of A117506. Previous arrays are Tables A007318, A059797 and A167201.
1

%I #2 Mar 31 2012 13:23:39

%S 5,21,14,56,70,28,120,216,162,48

%N Fourth in a series of triangular subarrays of A117506. Previous arrays are Tables A007318, A059797 and A167201.

%C This subarray is generated from values related to the source partition

%C 2+2+2. (cf A161924). Note that A117506(25) maps to Partition 2+2+2

%C which corresponds to the 14th natural number appearing in A161924.

%C Note also that Table A167201 is the transpose of Table a(n) and that

%C partition 3+3 is the conjugate of partition 2+2+2.

%e The A161924 domain values begin:

%e 14

%e 22..29

%e 38..45..59

%e 70..77..91..119

%e so based on function A117506, a(n) begins:

%e 5

%e 21..14

%e 56..70..28

%e 70..77..91..119

%Y A099627 A007318 A124922 A059797 A161924 A167201 A117506

%K nonn,tabl,uned

%O 1,1

%A _Alford Arnold_, Nov 04 2009