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A090208
Partial sums of sequence (A090206) of consecutive nonprime Fibonacci numbers.
0
1, 2, 9, 29, 55, 89, 199, 521, 987, 1597, 3571, 6765, 10946, 17711, 28657, 64079, 121393, 196418, 317811, 514229, 1149851, 2178309, 3524578, 5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 102334155
OFFSET
0,2
FORMULA
F(0) = 0; F(1) = 1; F(n) = F(n-1) + F(n-2); F(0:9) = 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 nonprimes: 0, 1, 1, 8, 21 sums of consecutive nonprimes: 1, 2, 9, 29
MATHEMATICA
Total /@ Partition[ Select[Fibonacci /@ Range[0, 40], ! PrimeQ[#] &], 2, 1] (* Seth A. Troisi, May 14 2022 *)
CROSSREFS
Sequence in context: A110377 A338436 A041877 * A123058 A212272 A062452
KEYWORD
easy,nonn
AUTHOR
Felix Tubiana, Jan 22 2004
EXTENSIONS
a(29) corrected by Seth A. Troisi, May 13 2022
STATUS
approved