A067485 Powers of 7 with initial digit 7.

7, 79792266297612001, 7730993719707444524137094407, 749048330965186233494494102694564493649, 72574551534231909331741171093173785967490646405143

Offset

1,1

Links

Muniru A Asiru, Table of n, a(n) for n = 1..70

Mathematica

Select[7^Range[80], First[IntegerDigits[#]]==7&] (* Harvey P. Dale, Apr 16 2013 *)

Prog

(GAP) Filtered(List([0..100], n->7^n), i->ListOfDigits(i)[1]=7); # Muniru A Asiru, Oct 22 2018

Crossrefs

Cf. A067480, A067481, A067482, A067483, A067484.

Sequence in context: A109300 A124272 A128820 * A180225 A353294 A127886

Adjacent sequences: A067482 A067483 A067484 * A067486 A067487 A067488

Keyword

base,easy,nonn

Author

Amarnath Murthy, Feb 09 2002

Extensions

More terms from Benoit Cloitre, Feb 22 2002

Status

approved