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A360967
Array T(n,m) = (2^(m*(2*n+1))+1)/(2^m+1) read by antidiagonals.
0
3, 13, 11, 57, 205, 43, 241, 3641, 3277, 171, 993, 61681, 233017, 52429, 683, 4033, 1016801, 15790321, 14913081, 838861, 2731, 16257, 16519105, 1041204193, 4042322161, 954437177, 13421773, 10923, 65281, 266354561, 67662254017, 1066193093601, 1034834473201, 61083979321, 214748365
OFFSET
1,1
LINKS
Quynh Nguyen, Jean Pedersen, and Hien T. Vu, New Integer Sequences Arising From 3-Period Folding Numbers, JIS vol 19 (2016) #16.3.1 table 3
EXAMPLE
The array starts in row n=1 and column n=1 as
3 13 57 241
11 205 3641 61681
43 3277 233017 15790321
171 52429 14913081 4042322161
CROSSREFS
Cf. A007583 (col 1), A299960 (col 2).
Sequence in context: A273649 A272994 A273674 * A214811 A121565 A107733
KEYWORD
tabl,nonn,easy
AUTHOR
R. J. Mathar, Feb 27 2023
STATUS
approved