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A026538
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a(n)=T(n,n-1), T given by A026536. Also a(n) = number of integer strings s(0),...,s(n), counted by T, such that s(n)=1.
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0
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1, 1, 3, 6, 13, 33, 65, 180, 346, 990, 1897, 5502, 10571, 30863, 59523, 174456, 337672, 992304, 1926650, 5673140, 11043858, 32571858, 63548069, 187675644, 366849016, 1084649644, 2123604927, 6284986554, 12322549765, 36501029265
(list; graph; refs; listen; history; internal format)
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