A319504 Indices of valleys (i.e. local minima) in A064800.

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

Offset: 1

Author

Zak Seidov, Sep 20 2018

Keywords

• nonn

Examples

			A064800(13) is the first minimum in A064800: A064800(12) = 15, A064800(13) = 14 and A064800(14) = 16 and hence a(1) = 13.
		

Crossrefs

Cf. A064800, A317743.

Programs

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

Extensions

More terms from Michel Marcus, Sep 21 2018