login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A167201
Third in a series of triangular subarrays of A117506. Previous arrays are Tables A007318 and A059797.
2
5, 14, 21, 28, 70, 56, 48, 162, 216, 120
OFFSET
1,1
COMMENTS
This subarray is generated from values related to the source partition 3+3. (cf A161924).
EXAMPLE
The domain values begin:
12
20..25
36..41..51
68..73..83..103
so based on function A117506, a(n) begins:
5
14..21
28..70..56
48..162..216..120
Note that A117506(22) maps to Partition 3+3
which corresponds to the 12th natural number appearing in A161924.
KEYWORD
more,nonn,tabl
AUTHOR
Alford Arnold, Nov 02 2009
STATUS
approved