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 A026065 (d(n)-r(n))/5, where d = A026063 and r is the periodic sequence with fundamental period (1,4,0,0,0). 1
 14, 23, 36, 51, 69, 90, 114, 143, 175, 211, 251, 295, 345, 399, 458, 522, 591, 667, 748, 835, 928, 1027, 1134, 1247, 1367, 1494, 1628, 1771, 1921, 2079, 2245, 2419, 2603, 2795, 2996, 3206, 3425, 3655, 3894, 4143, 4402, 4671, 4952, 5243, 5545, 5858, 6182, 6519, 6867, 7227, 7599, 7983, 8381 (list; graph; refs; listen; history; text; internal format)
 OFFSET 6,1 LINKS FORMULA a(n)=(n + 6)*(n^2 + 30*n + 71)/30 - 1/5*(1 + 2/5*5^(1/2)*cos(2*n*Pi/5) + 2/5*2^(1/2)*(5 + 5^(1/2))^(1/2)*sin(2*n*Pi/5) - 2/5*5^(1/2)*cos(4*n*Pi/5) + 2/5*2^(1/2)*(5 - 5^(1/2))^(1/2)*sin(4*n*Pi/5)) [Richard Choulet (richardchoulet(AT)yahoo.fr), Dec 14 2008] CROSSREFS Cf. A152898. Sequence in context: A102876 A188166 A184220 * A010922 A010902 A010923 Adjacent sequences:  A026062 A026063 A026064 * A026066 A026067 A026068 KEYWORD nonn AUTHOR STATUS approved

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