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 A319504 Indices of valleys (i.e. local minima) in A064800. 1
 13, 17, 19, 25, 29, 31, 33, 37, 41, 43, 49, 53, 55, 57, 61, 65, 67, 71, 73, 79, 85, 89, 91, 97, 101, 103, 109, 113, 121, 127, 129, 131, 133, 137, 139, 141, 145, 149, 151, 157, 161, 163, 169, 173, 177, 181, 185, 191, 193, 197, 199, 201, 205, 209, 211, 217, 221, 223, 229, 233, 235, 239, 241, 244, 249, 251, 253, 257, 265, 269, 271, 277, 281, 283, 289, 293, 295, 298 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE A064800(13) is the first minimum in A064800: A064800(12) = 15, A064800(13) = 14 and A064800(14) = 16 and hence a(1) = 13. PROG (PARI) lista(nn) = {my(v = vector(nn, n, n + bigomega(n))); for (n=2, nn, if ((v[n] < v[n-1]) && (v[n] < v[n+1]), print1(n, ", ")); ); } \\ Michel Marcus, Sep 21 2018 CROSSREFS Cf. A064800, A317743. Sequence in context: A167802 A105878 A054476 * A339912 A099184 A098095 Adjacent sequences:  A319501 A319502 A319503 * A319505 A319506 A319507 KEYWORD nonn AUTHOR Zak Seidov, Sep 20 2018 EXTENSIONS More terms from Michel Marcus, Sep 21 2018 STATUS approved

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Last modified August 7 23:50 EDT 2022. Contains 355995 sequences. (Running on oeis4.)