A086559 a(n) = (smallest n-digit number beginning with n and having prime signature of n)- (smallest n-digit number beginning with n).

0, 3, 7, 489, 21, 7, 3, 62991, 660121, 6, 21, 4, 21, 1, 17, 4502443050081, 9, 27, 9, 12, 39, 3, 3, 57, 8887056427569, 17, 20039676975717396967, 156, 23, 5, 291, 240000720001080000810000243, 5, 33, 6, 8400000000000000049, 3, 9, 11

Offset

1,2

Links

Table of n, a(n) for n=1..39.

Formula

a(n) = A086558(n) - n*10^(n-d), where d = the number of digits in n.

Example

a(4) = 4489 -4000=489.

Crossrefs

Cf. A086558.

Sequence in context: A104051 A128004 A281889 * A013426 A013422 A013424

Adjacent sequences: A086556 A086557 A086558 * A086560 A086561 A086562

Keyword

base,nonn

Author

Amarnath Murthy, Aug 30 2003

Extensions

More terms from Sascha Kurz, Sep 22 2003

Status

approved