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A067493 Powers of 7 with initial digit 1. 3
1, 16807, 117649, 1977326743, 13841287201, 1628413597910449, 11398895185373143, 191581231380566414401, 1341068619663964900807, 157775382034845806615042743, 1104427674243920646305299201 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Muniru A Asiru, Table of n, a(n) for n = 1..357

PROG

(GAP) Filtered(List([0..40], n->7^n), i->ListOfDigits(i)[1]=1); # Muniru A Asiru, Oct 22 2018

CROSSREFS

Cf. A067480, A067481, A067482, A067483, A067484, A067485, A067486, A067487, A067488, A067489, A067490, A067491, A067492.

Sequence in context: A227600 A147698 A208630 * A016925 A265472 A016985

Adjacent sequences:  A067490 A067491 A067492 * A067494 A067495 A067496

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Feb 09 2002

EXTENSIONS

Offset 1 by Michel Marcus, Oct 19 2018

STATUS

approved

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Last modified June 13 00:57 EDT 2021. Contains 344980 sequences. (Running on oeis4.)