A321163 - OEIS

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A321163 as a triangular array

										1
									1		3
								1		7		6
							1		15		25		10
						1		31		90		61		15
					1		63		301		310		136		21
				1		127		966		1441		990		244		28
			1		255		3025		6370		6391		2220		440		36
		1		511		9330		27301		38325		17731		5300		680		45
	1		1023		28501		114670		218926		130851		54831		9660		1022		55

A321163 as a square array

1	1	1	1	1	1	1	1	1	1
3	7	15	31	63	127	255	511	1023
6	25	90	301	966	3025	9330	28501
10	61	310	1441	6370	27301	114670
15	136	990	6391	38325	218926
21	244	2220	17731	130851
28	440	5300	54831
36	680	9660
45	1022
55

A321163 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	3	7	15	31	63	127	255	511	1023
		6	25	90	301	966	3025	9330	28501
			10	61	310	1441	6370	27301	114670
				15	136	990	6391	38325	218926
					21	244	2220	17731	130851
						28	440	5300	54831
							36	680	9660
								45	1022
									55