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A114807 The numbers 4^n-1 written in groups of three digits, with leading zeros omitted. 1
315, 632, 551, 234, 951, 638, 365, 535, 262, 143, 104, 857, 541, 943, 316, 777, 215, 671, 886, 326, 843, 545, 510, 737, 418, 234, 294, 967, 295, 171, 798, 691, 836, 871, 947, 673, 527, 487, 790, 694, 310, 995, 116, 277, 754, 398, 465, 111, 317, 592, 186 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

EXAMPLE

3, 15, 63, 255, 1023, 4095, 16383, ...

MATHEMATICA

FromDigits[#] & /@ Partition[ Flatten@ IntegerDigits@ Table[4^n - 1, {n, 22}], 3] (* Robert G. Wilson v, Jun 23 2014 *)

CROSSREFS

Cf. A114645.

Sequence in context: A256575 A295990 A076773 * A109130 A284981 A087415

Adjacent sequences:  A114804 A114805 A114806 * A114808 A114809 A114810

KEYWORD

base,dumb,nonn

AUTHOR

Jonathan Vos Post, Feb 19 2006

STATUS

approved

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Last modified September 26 11:29 EDT 2020. Contains 337365 sequences. (Running on oeis4.)