A307747 Terms in A307720 in order of appearance.

1, 2, 3, 4, 5, 7, 6, 8, 9, 10, 11, 13, 12, 14, 15, 17, 19, 16, 18, 23, 29, 20, 21, 24, 25, 26, 27, 22, 28, 30, 31, 37, 35, 33, 41, 43, 47, 53, 49, 39, 45, 32, 34, 36, 38, 59, 61, 55, 51, 57, 56, 58, 67, 71, 62, 63, 65, 64, 46, 48, 40, 44, 42, 50, 52, 54, 73

Offset: 1

Author

Rémy Sigrist, Apr 26 2019

Keywords

• nonn

Examples

			The first terms of A307720 are (with periodic parts in parentheses):
    1,1,2,(1,3)*2,(2,2)*2,(2,3)*3,(3,3)*4,3,(4,2)*4,(4,3)*6,(5,1)*3,(7,1)*3,7,...
    *   *    *                               *               *       *
The terms marked with a star give the sequence:
    1,  2,   3,                              4,              5,      7,...
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, Colored scatterplot of the first 10000 terms (red pixels correspond to prime terms)
• Rémy Sigrist, C++ program for A307747

Crossrefs

Cf. A307720.