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A291970 Triangle read by rows: T(n,k) = 2 * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n). 3
1, 0, 2, 0, 2, 0, 2, 4, 0, 2, 4, 0, 2, 8, 0, 2, 8, 8, 0, 2, 12, 8, 0, 2, 12, 16, 0, 2, 16, 24, 0, 2, 16, 32, 16, 0, 2, 20, 40, 16, 0, 2, 20, 56, 32, 0, 2, 24, 64, 48, 0, 2, 24, 80, 80, 0, 2, 28, 96, 96, 32, 0, 2, 28, 112, 144, 32, 0, 2, 32, 128, 176, 64, 0, 2, 32 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
EXAMPLE
First few rows are:
1;
0, 2;
0, 2;
0, 2, 4;
0, 2, 4;
0, 2, 8;
0, 2, 8, 8;
0, 2, 12, 8;
0, 2, 12, 16;
0, 2, 16, 24;
0, 2, 16, 32, 16.
CROSSREFS
Row sums give A032302.
Columns 0-1 give A000007, A007395.
Cf. A008289 (m=1), this sequence (m=2), A291971 (m=3).
Sequence in context: A333753 A139036 A292129 * A281981 A159006 A291968
KEYWORD
nonn,tabf,look
AUTHOR
Seiichi Manyama, Sep 07 2017
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)