A082155 - OEIS

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A082155 as a triangular array

												1
											6		2
										15		8		3
									28		18		10		4
								45		32		21		12		5
							66		50		36		24		14		7
						91		72		55		40		27		17		9
					120		98		78		60		44		31		20		11
				153		128		105		84		65		49		35		23		13
			190		162		136		112		90		71		54		39		26		16
		231		200		171		144		119		97		77		59		43		30		19
	276

A082155 as a square array

1	6	15	28	45	66	91	120	153	190	231	276
2	8	18	32	50	72	98	128	162	200
3	10	21	36	55	78	105	136	171
4	12	24	40	60	84	112	144
5	14	27	44	65	90	119
7	17	31	49	71	97
9	20	35	54	77
11	23	39	59
13	26	43
16	30
19

A082155 as an upper right triangle

1	6	15	28	45	66	91	120	153	190	231	276
	2	8	18	32	50	72	98	128	162	200
		3	10	21	36	55	78	105	136	171
			4	12	24	40	60	84	112	144
				5	14	27	44	65	90	119
					7	17	31	49	71	97
						9	20	35	54	77
							11	23	39	59
								13	26	43
									16	30
										19