A303841 - OEIS

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A303841 as a triangular array

												1
											1		1
										1		1		1
									1		2		2		2
								1		2		4		4		3
							1		3		6		10		9		6
						1		3		9		17		24		20		11
					1		4		12		30		50		63		48		23
				1		4		16		44		96		146		164		115		47
			1		5		20		67		164		315		437		444		286		106
		1		5		25		91		267		592		1022		1300		1204		719		235
	1		6		30		126		408		1059		2126		3331		3899		3328		1842		551

A303841 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
1	1	2	2	3	3	4	4	5	5	6
1	2	4	6	9	12	16	20	25	30
2	4	10	17	30	44	67	91	126
3	9	24	50	96	164	267	408
6	20	63	146	315	592	1059
11	48	164	437	1022	2126
23	115	444	1300	3331
47	286	1204	3899
106	719	3328
235	1842
551

A303841 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	1	1	2	2	3	3	4	4	5	5	6
		1	2	4	6	9	12	16	20	25	30
			2	4	10	17	30	44	67	91	126
				3	9	24	50	96	164	267	408
					6	20	63	146	315	592	1059
						11	48	164	437	1022	2126
							23	115	444	1300	3331
								47	286	1204	3899
									106	719	3328
										235	1842
											551