A096564 Smallest triangular number greater than n! with the same leading digits as n!.

10, 21, 66, 2415, 12090, 72010, 50403, 403209003, 36288045300, 362880009570, 399168005840220, 479001600533564010, 622702080005384225220, 87178291200412190739351, 1307674368000244816773411, 20922789888000682660400311, 355687428096000275258914747246, 6402373705728000710284752537711, 121645100408832000152042178127701610, 24329020081766400006144469158651504786

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Example

a(7) = 50403 because this is the smallest triangular number starting with 7!=5040.

Crossrefs

Cf. A096565.

Sequence in context: A095679 A095192 A356761 * A041196 A082669 A215574

Adjacent sequences: A096561 A096562 A096563 * A096565 A096566 A096567

Keyword

base,nonn

Author

Jason Earls, Jun 26 2004

Extensions

More terms from David Wasserman, Nov 16 2007

Status

approved