A219452 First position of a plateau of length n in the product-of-exponents function A005361.

2, 4, 843, 74848, 671345, 8870024

Offset

2,1

Comments

The smallest index k such that A005361(k+1) = A005361(k+2) = ... = A005361(k+n).

a(8) is conjectured to be 1770019255373287038727484868192109228823.

Links

Table of n, a(n) for n=2..7.

J.-M. de Koninck, F. Luca, The product of exponents in the factorization of consecutive integers, Mathematika 55 (2009) 59-65

Crossrefs

Sequence in context: A203509 A009562 A045647 * A102064 A085638 A134718

Adjacent sequences: A219449 A219450 A219451 * A219453 A219454 A219455

Keyword

nonn

Author

R. J. Mathar, Nov 20 2012

Status

approved