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 A049874 a(n)=b(n)-b(n-1), where b=A049862 (differences of products of Fibonacci numbers.) 2
 1, 1, 1, 2, 1, 2, 2, 3, 2, 1, 5, 3, 2, 8, 5, 1, 2, 13, 8, 2, 3, 21, 13, 2, 1, 5, 34, 21, 3, 2, 8, 55, 34, 5, 1, 2, 13, 89, 55, 8, 2, 3, 21, 144, 89, 13, 2, 1, 5, 34, 233, 144, 21, 3, 2, 8, 55, 377, 233, 34, 5, 1, 2, 13, 89, 610, 377, 55, 8, 2, 3, 21, 144, 987, 610, 89, 13, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Michel Marcus, Table of n, a(n) for n = 1..1010 PROG (PARI) lista(nn) = {my(out = List([0])); for (i=0, nn, for (j=i+1, nn, listput(out, fibonacci(i)*fibonacci(j)); ); ); my(v = Vec(vecsort(select(x->(x < fibonacci(nn+1)), out), , 8))); vector(#v-1, k, v[k+1] - v[k]); } \\ Michel Marcus, May 27 2019 CROSSREFS Cf. A049862. Sequence in context: A088431 A254661 A052304 * A060501 A109129 A304486 Adjacent sequences:  A049871 A049872 A049873 * A049875 A049876 A049877 KEYWORD nonn AUTHOR EXTENSIONS More terms from Michel Marcus, May 27 2019 STATUS approved

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Last modified September 18 11:20 EDT 2021. Contains 347518 sequences. (Running on oeis4.)