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a(n) = 1 + A053644(n) - A004001(n+1) = 1 + A072376(n) - A266348(n).
2

%I #9 Jan 30 2016 03:08:56

%S 1,1,1,2,1,1,1,4,3,2,2,1,1,1,1,8,7,6,5,5,4,3,3,2,2,2,1,1,1,1,1,16,15,

%T 14,13,12,12,11,10,9,9,8,7,7,6,6,6,5,4,4,3,3,3,2,2,2,2,1,1,1,1,1,1,32,

%U 31,30,29,28,27,27,26,25,24,23,23,22,21,20,20,19,18,18,17,17,17,16,15,14,14,13,12,12,11,11,11,10

%N a(n) = 1 + A053644(n) - A004001(n+1) = 1 + A072376(n) - A266348(n).

%C Used in a recursive formula of A265754.

%H Antti Karttunen, <a href="/A266349/b266349.txt">Table of n, a(n) for n = 1..8191</a>

%F a(n) = 1 + A053644(n) - A004001(n+1).

%F a(n) = 1 + A072376(n) - A266348(n).

%t b[1] = 1; b[2] = 1; b[n_] := b[n] = b[b[n - 1]] + b[n - b[n - 1]]; Table[1 + 2^(Ceiling@ Log2[n + 1] - 1) - b[n + 1], {n, 96}] (* _Michael De Vlieger_, Jan 26 2016, after _Robert G. Wilson v_ at A004001 *)

%o (Scheme, two variants)

%o (define (A266349 n) (+ 1 (- (A053644 n) (A004001 (+ 1 n)))))

%o (define (A266349 n) (+ 1 (- (A072376 n) (A266348 n))))

%Y Cf. A004001, A053644, A072376, A266348, A265754, A266640.

%K nonn

%O 1,4

%A _Antti Karttunen_, Jan 22 2016