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A145561
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Alternating row sums of triangle A049029 (S2(5)).
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1, 4, 31, 359, 5546, 107249, 2492701, 67693534, 2103854581, 73651161959, 2868077514776, 122980857764819, 5758029769553101, 292305762924889804, 15992593021331060611, 938143525674896325299, 58739433900424758545186, 3910020681156059085488189
(list; graph; refs; listen; history; internal format)
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