A051242 - OEIS

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A051242 as a triangular array

											2
										10		1
									12		4		3
								38		6		8		5
							42		18		11		7		9
						52		22		13		16		15		17
					56		24		14		19		32		21		33
				142		28		34		20		35		27		45		65
			150		70		36		23		37		31		51		73		129
		170		78		39		25		41		64		63		85		153		257
	178		82		40		26		44		67		128

A051242 as a square array

2	10	12	38	42	52	56	142	150	170	178
1	4	6	18	22	24	28	70	78	82
3	8	11	13	14	34	36	39	40
5	7	16	19	20	23	25	26
9	15	32	35	37	41	44
17	21	27	31	64	67
33	45	51	63	128
65	73	85
129	153
257

A051242 as an upper right triangle

2	10	12	38	42	52	56	142	150	170	178
	1	4	6	18	22	24	28	70	78	82
		3	8	11	13	14	34	36	39	40
			5	7	16	19	20	23	25	26
				9	15	32	35	37	41	44
					17	21	27	31	64	67
						33	45	51	63	128
							65	73	85
								129	153
									257