A191666 - OEIS

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A191666 as a triangular array

										1
									2		4
								3		7		5
							6		14		10		8
						11		27		19		15		9
					22		54		38		30		18		12
				43		107		75		59		35		23		13
			86		214		150		118		70		46		26		16
		171		427		299		235		139		91		51		31		17
	342		854		598		470		278		182		102		62		34		20
683		1707		1195		939		555		363

A191666 as a square array

1	2	3	6	11	22	43	86	171	342	683
4	7	14	27	54	107	214	427	854	1707
5	10	19	38	75	150	299	598	1195
8	15	30	59	118	235	470	939
9	18	35	70	139	278	555
12	23	46	91	182	363
13	26	51	102
16	31	62
17	34
20

A191666 as an upper right triangle

1	2	3	6	11	22	43	86	171	342	683
	4	7	14	27	54	107	214	427	854	1707
		5	10	19	38	75	150	299	598	1195
			8	15	30	59	118	235	470	939
				9	18	35	70	139	278	555
					12	23	46	91	182	363
						13	26	51	102
							16	31	62
								17	34
									20