| 30, 42, 146, 346, 942, 2430, 6398, 16714, 43794, 114618, 300110, 785662, 2056926, 5385066, 14098322, 36909850, 96631278, 252983934, 662320574, 1733977738, 4539612690, 11884860282, 31114968206, 81460044286, 213265164702, 558335449770, 1461741184658, 3826888104154
(list; graph; listen)
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