A258975 a(n) = n-th pi-based antiderivative of 1.

1, 2, 3, 5, 11, 10, 29, 78, 141, 266, 147, 194, 1181, 2413, 1834, 6293, 4805, 20290, 28345, 25065, 85334, 87967, 55722, 191559, 385845, 437914, 998758, 396375, 95625, 202043, 341774, 2217782, 1607613, 1333107, 1697893, 1222517, 2277354, 1599111

Offset: 0

Author

Alois P. Heinz, Jun 18 2015

Keywords

• nonn

Examples

			a(6) = 29 -> 10 -> 11 -> 5 -> 3 -> 2 -> 1.
a(7) = 78 -> 127 -> 31 -> 11 -> 5 -> 3 -> 2 -> 1.
		

Crossrefs

Row n=1 of A259016.

Cf. A000720, A258850, A258851.

Formula

a(n) = min { m >= 0 : A258851^n(m) = 1 }.

A258850(a(n),n) = 1.