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A027300 as a triangular array

0
11
122
2344
24566
46891010
481012131414
711151719202121
81519232527282929
12202731353739404141
1426344145495153545555
2135

A027300 as a square array

011224478121421
1234681115202635
24581015192734
4691217233141
6101319253545
101420273749
1421283951
21294053
294154
4155
55
011224478121421
1234681115202635
24581015192734
4691217233141
6101319253545
101420273749
1421283951
21294053
294154
4155
55