A173028 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A173028 as a triangular array

											1
										3		2
									4		9		6
								5		13		29		7
							16		45		43		35		8
						19		56		57		52		15		10
					22		67		186		181		58		51		11
				25		78		223		226		77		199		55		12
			28		89		260		271		96		265		82		61		14
		31		262		297		316		115		331		109		91		71		17
	34		291		334		361		351		397		136		317		106		87		18

A173028 as a square array

1	3	4	5	16	19	22	25	28	31	34
2	9	13	45	56	67	78	89	262	291
6	29	43	57	186	223	260	297	334
7	35	52	181	226	271	316	361
8	15	58	77	96	115	351
10	51	199	265	331	397
11	55	82	109	136
12	61	91	317
14	71	106
17	87
18

A173028 as an upper right triangle

1	3	4	5	16	19	22	25	28	31	34
	2	9	13	45	56	67	78	89	262	291
		6	29	43	57	186	223	260	297	334
			7	35	52	181	226	271	316	361
				8	15	58	77	96	115	351
					10	51	199	265	331	397
						11	55	82	109	136
							12	61	91	317
								14	71	106
									17	87
										18