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 A026154 a(n) = T(n,n-3), where T is the array in A026148. 0
 1, 3, 11, 35, 111, 343, 1049, 3177, 9559, 28611, 85293, 253461, 751296, 2222442, 6563598, 19359022, 57038247, 167911721, 493972165, 1452419661, 4268753126, 12542145548, 36841741320, 108202146520, 317748977715, 933052724721, 2739805981773 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,2 LINKS Table of n, a(n) for n=3..29. FORMULA Conjecture: (n+9)*a(n) +(-7*n-47)*a(n-1) +(13*n+51)*a(n-2) +(5*n+37)*a(n-3) +2*(-13*n-6)*a(n-4) +2*(n-13)*a(n-5) +12*(n-4)*a(n-6)=0. - R. J. Mathar, Jun 23 2013 CROSSREFS First differences of A026328. Sequence in context: A370199 A126940 A026125 * A025181 A004054 A068995 Adjacent sequences: A026151 A026152 A026153 * A026155 A026156 A026157 KEYWORD nonn AUTHOR Clark Kimberling STATUS approved

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Last modified August 10 02:46 EDT 2024. Contains 375044 sequences. (Running on oeis4.)