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%I #10 Mar 20 2024 09:35:28
%S 10,20,26,36,46,52,62,68,78,88,94,104,114,120,130,136,146,156,162,172,
%T 178,188,198,204,214,224,230,240,246,256,266,272,282,292,298,308,314,
%U 324,334,340,350,356,366,376,382,392,402,408,418,424,434,444,450,460,466,476,486
%N Row 2 of A101866.
%H Paolo Xausa, <a href="/A101869/b101869.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = 2*n + 4*ceiling(n*(1 + sqrt(5))/2). - _Paolo Xausa_, Mar 20 2024
%t Array[2*# + 4*Ceiling[#*GoldenRatio] &, 100] (* _Paolo Xausa_, Mar 20 2024 *)
%Y Cf. A001622, A101866.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jan 28 2005
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