A081926 - OEIS

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A081926 as a triangular array

											1
										2		11
									3		12		21
								4		13		22		31
							5		14		23		32		41
						6		15		24		33		42		51
					7		16		25		34		43		52		61
				8		17		26		35		44		53		62		71
			9		18		27		36		45		54		63		72		81
		19		28		37		46		55		64		73		82		91		109
	29		38		47		56		65		74		83		92		119		128		137

A081926 as a square array

1	2	3	4	5	6	7	8	9	19	29
11	12	13	14	15	16	17	18	28	38
21	22	23	24	25	26	27	37	47
31	32	33	34	35	36	46	56
41	42	43	44	45	55	65
51	52	53	54	64	74
61	62	63	73	83
71	72	82	92
81	91	119
109	128
137

A081926 as an upper right triangle

1	2	3	4	5	6	7	8	9	19	29
	11	12	13	14	15	16	17	18	28	38
		21	22	23	24	25	26	27	37	47
			31	32	33	34	35	36	46	56
				41	42	43	44	45	55	65
					51	52	53	54	64	74
						61	62	63	73	83
							71	72	82	92
								81	91	119
									109	128
										137