The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A331977 Integers m such that m and m+1 are terms of A111035. 2
 1, 6479, 11663, 34943, 47519, 51983, 196559, 327359, 685583, 954239, 1016063, 1346879, 2039183, 2332799, 2504447, 4665599, 5143823, 5962319, 6128639, 6723359, 7225343, 9363599, 12027023, 12446783, 14930351, 17639999, 17735759, 22924943, 24681023, 34715519, 41990399 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Daniel Suteu, Table of n, a(n) for n = 1..128 Daniel Yaqubi and Amirali Fatehizadeh, Some results on average of Fibonacci and Lucas sequences, arXiv:2001.11839 [math.CO], 2020. PROG (PARI) f(n, m) = (Mod([1, 1; 1, 0], m)^n)[1, 2]; isok(n) = f(n+2, n)==1 && f(n+3, n+1)==1; for(k=1, 10^7, if(isok(k), print1(k, ", "))); \\ Daniel Suteu, Feb 03 2020 CROSSREFS Cf. A111035 (the sum of the first k nonzero Fibonacci numbers is divisible by k). Sequence in context: A318629 A213117 A232410 * A339598 A175756 A190012 Adjacent sequences: A331974 A331975 A331976 * A331978 A331979 A331980 KEYWORD nonn AUTHOR Michel Marcus, Feb 03 2020 EXTENSIONS a(23)-a(31) from Daniel Suteu, Feb 03 2020. STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)