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 A185061 Position of the first occurrence of n in A193358 when it is considered to have the starting offset 1 instead of 0. 0
 1, 2, 5, 3, 11, 7, 19, 13, 29, 21, 41, 31, 55, 43, 71, 57, 89, 73, 109, 91, 131, 111, 155, 133, 181, 157, 209, 183, 239, 211, 271, 241, 305, 273, 341, 307, 379, 343, 419, 381, 461, 421, 505, 463, 551, 507, 599, 553, 649, 601, 701, 651, 755, 703, 811, 757 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Conjecture: Only odd numbers occur after 2. - Antti Karttunen, Jun 13 2013 Conjecture is true. - Chai Wah Wu, Jun 07 2016 LINKS FORMULA a(n) = A193422(n)+1, or in other words, 1 + the position of the first occurrence of n in A193358. - Antti Karttunen, Jun 13 2013 From Chai Wah Wu, Jun 07 2016: (Start) G.f.: x*(x^6 - x^5 - 3*x^4 + 4*x^3 - x^2 - x - 1)/((x - 1)^3*(x + 1)^2). a(2*n) = n*(n-1) + 1 for n > 1. a(2*n+1) = n*(n+3) + 1. a(n) = a(n-1) + 2*a(n-2) - 2*a(n-3) - a(n-4) + a(n-5) for n > 7. (End) MATHEMATICA aux[0]=1; aux[1]=2; aux[n_]:=aux[n]=aux[n-aux[n-2]]+2; a[i_]:={n=0; While[!(aux[n]==i), n++]; n}; Flatten[Table[a[i]+1, {i, 1, 100}]] (* corrected by Robert Price, Jun 06 2016 *) CROSSREFS Cf. A193358. Sequence in context: A178174 A094744 A229608 * A129198 A122442 A225258 Adjacent sequences: A185058 A185059 A185060 * A185062 A185063 A185064 KEYWORD nonn,easy AUTHOR José María Grau Ribas, Jan 22 2012 EXTENSIONS Description clarified to take heed of changed offset of A193358 by Antti Karttunen, Jun 13 2013 STATUS approved

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Last modified March 22 20:34 EDT 2023. Contains 361433 sequences. (Running on oeis4.)