A051543 Quotients of consecutive values of lcm of first n triangular numbers (A000217).

3, 2, 5, 1, 7, 2, 3, 1, 11, 1, 13, 1, 1, 2, 17, 1, 19, 1, 1, 1, 23, 1, 5, 1, 3, 1, 29, 1, 31, 2, 1, 1, 1, 1, 37, 1, 1, 1, 41, 1, 43, 1, 1, 1, 47, 1, 7, 1, 1, 1, 53, 1, 1, 1, 1, 1, 59, 1, 61, 1, 1, 2, 1, 1, 67, 1, 1, 1, 71, 1, 73, 1, 1, 1, 1, 1, 79, 1, 3, 1, 83, 1, 1, 1, 1, 1, 89, 1, 1, 1, 1, 1, 1, 1

Offset: 1

Author

Asher Auel

Keywords

• easy
• nonn

Examples

			a(5) = A025555(6)/A025555(5) = 210/30 = 7
		

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A025555.

Cf. A051542.

Programs

Haskell

a051543 n = a051542_list !! (n-1)
a051543_list = zipWith div (tail a025555_list) a025555_list
-- Reinhard Zumkeller, Mar 12 2014

Formula

a(n) = A025555(n+1)/A025555(n)

Extensions

Corrected and extended by James Sellers