A280233 - OEIS

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A280233 as a triangular array

											0
										0		0
									2		4		2
								2		6		6		2
							5		8		9		8		5
						8		14		16		16		14		8
					15		24		29		48		29		24		15
				26		42		52		116		116		52		42		26
			46		72		95		288		355		288		95		72		46
		80		124		168		678		1102		1102		678		168		124		80
	139		212		298		1600		3376		4260		3376		1600		298		212

A280233 as a square array

0	0	2	2	5	8	15	26	46	80	139
0	4	6	8	14	24	42	72	124	212
2	6	9	16	29	52	95	168	298
2	8	16	48	116	288	678	1600
5	14	29	116	355	1102	3376
8	24	52	288	1102	4260
15	42	95	678	3376
26	72	168	1600
46	124	298
80	212

A280233 as an upper right triangle

0	0	2	2	5	8	15	26	46	80	139
	0	4	6	8	14	24	42	72	124	212
		2	6	9	16	29	52	95	168	298
			2	8	16	48	116	288	678	1600
				5	14	29	116	355	1102	3376
					8	24	52	288	1102	4260
						15	42	95	678	3376
							26	72	168	1600
								46	124	298
									80	212