A343767 a(n) is the index of A023394(n) in flattened array A050922.

0, 1, 2, 3, 5, 4, 25, 7, 20, 21, 13, 6

Offset: 1

Author

Lorenzo Sauras Altuzarra, Apr 28 2021

Keywords

• nonn
• more

Comments

a(14) = 26, a(15) = 16, a(16) = 27, a(20) = 17, a(22) = 28.

Permutation of the natural numbers.

Examples

			A023394(1) = 3 = A050922(0), so a(1) = 0.
A023394(2) = 5 = A050922(1), so a(2) = 1.
		

Links

• Lorenzo Sauras-Altuzarra, Some properties of the factors of Fermat numbers, Art Discrete Appl. Math. (2022).
• Index entries for sequences that are related to primes dividing Fermat numbers
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A023394, A050922.

Formula

A023394(n) = A050922(a(n)).