A361808 Inverse permutation to A181820.

1, 2, 3, 4, 5, 6, 7, 9, 11, 8, 10, 13, 14, 12, 15, 22, 18, 20, 25, 17, 19, 16, 32, 29, 23, 21, 38, 24, 40, 27, 51, 54, 26, 28, 30, 43, 63, 35, 33, 36, 80, 34, 98, 31, 49, 46, 119, 66, 44, 41, 42, 39, 145, 72, 37, 47, 53, 58, 173, 55, 207, 71, 61, 114, 48, 45

Offset: 1

Author

Pontus von Brömssen, Mar 25 2023

Keywords

• nonn

Comments

The partition with Heinz number n is given by the prime signature of A025487(a(n)).

Examples

			The partition with Heinz number 18 = prime(1)^1*prime(2)^2 is (1,2,2), and prime(1)^2*prime(2)^2*prime(3)^1 = 180 = A025487(20), so a(18) = 20.
		

Links

• Index entries for sequences that are permutations of the positive integers

Crossrefs

Cf. A025487, A181820, A361809 (fixed points).

Formula

a(A181820(n)) = A181820(a(n)) = n.