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A022780 Place where n-th 1 occurs in A023118. 3

%I

%S 1,2,3,5,7,10,13,17,21,26,31,36,42,48,55,62,70,78,87,96,105,115,125,

%T 136,147,159,171,184,197,210,224,238,253,268,284,300,317,334,351,369,

%U 387,406,425,445,465,486,507,529,551,573,596,619,643,667,692

%N Place where n-th 1 occurs in A023118.

%H Clark Kimberling, <a href="/A022780/b022780.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) = n + 1 + Sum{floor[(n - k)/sqrt(5)], k = 0..n}.

%t Table[n + 1 + Sum[Floor[(n - k)/Sqrt[5]], {k, 0, n}], {n, 0, 200}] (* A022780 *)

%t (* _Clark Kimberling_, Mar 14 2015 *)

%Y Cf. A022776, A022778, A255977.

%K nonn

%O 1,2

%A _Clark Kimberling_

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Last modified June 6 09:44 EDT 2020. Contains 334860 sequences. (Running on oeis4.)