A363456 Positions of the terms of the Chernoff sequence (A006939) in A025487.

1, 2, 6, 27, 150, 900, 5697, 37226, 246280, 1648592, 11204274

Offset: 0

Author

Amiram Eldar, Jun 03 2023

Keywords

• nonn
• more

Comments

Indices of records in A363455.

Examples

			A006939(0) = A025487(1) = 1, so a(0) = 1.
A006939(1) = A025487(2) = 2, so a(1) = 2.
A006939(2) = A025487(6) = 12, so a(2) = 6.
		

Crossrefs

Cf. A006939, A025487, A363455.

Similar sequences: A098718, A098719, A293635, A306802, A346043, A346407.

Programs

Mathematica

lps = Cases[Import["https://oeis.org/A025487/b025487.txt", "Table"], {, }][[;; , 2]];
cher = Table[Product[Prime[k]^(n - k + 1), {k, 1, n}], {n, 0, 8}]
Position[lps, #] & /@ cher // Flatten

Formula

A025487(a(n)) = A006939(n).

A363455(a(n)) = n.