| 1, 4, 11, 30, 70, 174, 403, 934, 2091, 4648, 10095, 21733, 46021, 96489, 199844, 410036, 832759, 1677043, 3348049, 6632748, 13040523, 25460796, 49374824, 95146403, 182232116, 347015604, 657138242, 1237835490, 2319809087, 4326325573, 8030456967, 14838667824
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