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 A181090 Sum_{d|F(n)} d^3, where F(n) are the Fibonacci numbers. 0
 1, 1, 9, 28, 126, 585, 2198, 9632, 44226, 167832, 704970, 3543517, 12649338, 53609220, 257397588, 1000032768, 4073003174, 19720373400, 73088555292, 323884878912, 1476102415284, 5555586582000, 23533806109394 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Table of n, a(n) for n=1..23. EXAMPLE a(6) = 585 is in the sequence because Fibonacci(6) = 8, and 1^3 + 2^3 + 4^3 + 8^3 = 585. MATHEMATICA Table[Plus@@(Transpose[DivisorSigma[3, Fibonacci[n]]][[1]]), {n, 30}] CROSSREFS Cf. A000045, A063477, A063478. Sequence in context: A349547 A085292 A198059 * A073706 A226976 A042501 Adjacent sequences: A181087 A181088 A181089 * A181091 A181092 A181093 KEYWORD nonn AUTHOR Michel Lagneau, Oct 02 2010 STATUS approved

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Last modified July 18 12:17 EDT 2024. Contains 374378 sequences. (Running on oeis4.)