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A370762
Triangle read by rows: T(n,k) = 2 * (k mod 2 + 1) * T(n-1,floor(k/2)) + 1 with T(0,0) = 1 for 0 <= k <= 2^n-1.
1
1, 3, 5, 7, 13, 11, 21, 15, 29, 27, 53, 23, 45, 43, 85, 31, 61, 59, 117, 55, 109, 107, 213, 47, 93, 91, 181, 87, 173, 171, 341, 63, 125, 123, 245, 119, 237, 235, 469, 111, 221, 219, 437, 215, 429, 427, 853, 95, 189, 187, 373, 183, 365, 363, 725, 175, 349, 347, 693, 343, 685, 683, 1365
OFFSET
0,2
LINKS
Seiichi Manyama, Rows n = 0..12, flattened
EXAMPLE
First few rows are:
1;
3, 5;
7, 13, 11, 21;
15, 29, 27, 53, 23, 45, 43, 85;
31, 61, 59, 117, 55, 109, 107, 213, 47, 93, 91, 181, 87, 173, 171, 341;
PROG
(PARI) T(n, k) = if(n==0, 1, 2*(k%2+1)*T(n-1, k\2)+1);
CROSSREFS
Row sums give A016129.
Columns k=0 gives A000225(n+1).
Cf. A247648.
Sequence in context: A098957 A143245 A018205 * A121047 A152075 A092789
KEYWORD
nonn,tabf
AUTHOR
Seiichi Manyama, Mar 01 2024
STATUS
approved