A028272 Elements to right of central elements in 3-Pascal triangle A028262 that are not 1.
4, 5, 13, 6, 19, 7, 45, 26, 8, 71, 34, 9, 161, 105, 43, 10, 266, 148, 53, 11, 588, 414, 201, 64, 12, 1002, 615, 265, 76, 13, 2178, 1617, 880, 341, 89, 14, 3795, 2497, 1221, 430, 103, 15, 8151, 6292, 3718, 1651, 533, 118, 16, 14443, 10010, 5369, 2184, 651, 134
Offset: 0
Extensions
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