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 A061985 Values which can occur in sequence b(k) = 1 + b(floor(k/2)) + b(floor(k/3)) with b(0) = 0, i.e., in A061984. 4

%I #9 Jul 30 2017 23:04:43

%S 0,1,2,3,4,6,7,8,11,12,15,19,20,21,27,32,36,37,47,48,54,64,65,80,85,

%T 92,112,113,114,135,150,158,193,199,200,228,263,264,273,329,350,351,

%U 387,457,464,474,558,614,615,616,661,787,815,826,946,1072,1073,1081,1136

%N Values which can occur in sequence b(k) = 1 + b(floor(k/2)) + b(floor(k/3)) with b(0) = 0, i.e., in A061984.

%H Reinhard Zumkeller, <a href="/A061985/b061985.txt">Table of n, a(n) for n = 0..100</a>

%F a(n) = a(n-1) + C(A022328(n) + A022329(n), A022328(n)). - _David Wasserman_, Nov 17 2005

%o a061985 n = a061985_list !! n

%o a061985_list = f (-1) a061984_list where

%o f u (v:vs) = if v == u then f u vs else v : f v vs

%o -- _Reinhard Zumkeller_, Jan 11 2014

%Y Cf. A061984, A061986, A061987.

%K nonn

%O 0,3

%A _Henry Bottomley_, May 24 2001

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Last modified September 11 17:54 EDT 2024. Contains 375839 sequences. (Running on oeis4.)