A083790 Smallest start of n consecutive numbers with distinct prime signatures.

1, 1, 4, 6, 8, 23, 24, 1804, 1968, 8375, 53750, 243864, 639324, 41381620, 102621343, 7802708736, 7802708736, 178874468615, 1133934949368

Offset

1,3

Comments

a(16) > 750000000. - Ray Chandler, Aug 21 2003

a(16) > 6.646*10^9. - David Wasserman, Jan 08 2006

a(18) > 10^11. - Donovan Johnson, Oct 24 2009

a(20) > 10^13. - Giovanni Resta, Jul 13 2015

Links

Table of n, a(n) for n=1..19.

Crossrefs

A124058 gives another version of the same sequence.

First column of A083788.

Cf. A083789, A083791, A034173.

Sequence in context: A073437 A019196 A086561 * A217201 A074125 A063719

Adjacent sequences: A083787 A083788 A083789 * A083791 A083792 A083793

Keyword

nonn,more

Author

Amarnath Murthy, May 07 2003

Extensions

Corrected and extended by Ray Chandler, Aug 17 2003

More terms from Ray Chandler, Aug 21 2003

a(16)-a(17) from Donovan Johnson, Oct 24 2009

a(18)-a(19) from Giovanni Resta, Jul 13 2015

New name from Jon E. Schoenfield, Nov 17 2022

Status

approved