A004202 - OEIS

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A004202 as a triangular array

											2
										5		6
									10		11		12
								17		18		19		20
							26		27		28		29		30
						37		38		39		40		41		42
					50		51		52		53		54		55		56
				65		66		67		68		69		70		71		72
			82		83		84		85		86		87		88		89		90
		101		102		103		104		105		106		107		108		109		110
	122		123		124		125		126		127		128		129		130		131		132

A004202 as a square array

2	5	10	17	26	37	50	65	82	101	122
6	11	18	27	38	51	66	83	102	123
12	19	28	39	52	67	84	103	124
20	29	40	53	68	85	104	125
30	41	54	69	86	105	126
42	55	70	87	106	127
56	71	88	107	128
72	89	108	129
90	109	130
110	131
132

A004202 as an upper right triangle

2	5	10	17	26	37	50	65	82	101	122
	6	11	18	27	38	51	66	83	102	123
		12	19	28	39	52	67	84	103	124
			20	29	40	53	68	85	104	125
				30	41	54	69	86	105	126
					42	55	70	87	106	127
						56	71	88	107	128
							72	89	108	129
								90	109	130
									110	131
										132