The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A271938

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A271938

a(1) = 1, a(2) = 3, a(n) = a(n-1)^a(n-2).
(history; published version)

#11 by N. J. A. Sloane at Sat Jan 11 15:57:47 EST 2020

AUTHOR

_Natan Arie' Consigli_, Apr 17 2016

Discussion

Sat Jan 11

15:57

OEIS Server: https://oeis.org/edit/global/2842

#10 by N. J. A. Sloane at Sat Apr 23 09:46:16 EDT 2016

STATUS

proposed

approved

#9 by Natan Arie' Consigli at Tue Apr 19 00:11:55 EDT 2016

STATUS

editing

proposed

Discussion

Tue Apr 19

01:18

Michel Marcus: Yes, the -total- length of the data should be around 260.

#8 by G. C. Greubel at Mon Apr 18 23:11:44 EDT 2016

STATUS

proposed

editing

Discussion

Tue Apr 19

00:11

Natan Arie' Consigli: I have been told that if characters are less than 260, it can fit in the data section

#7 by Natan Arie' Consigli at Mon Apr 18 16:35:21 EDT 2016

STATUS

editing

proposed

Discussion

Mon Apr 18

23:11

G. C. Greubel: Terms a(6+) should be in the b-file and not in the main data section.

#6 by Natan Arie' Consigli at Mon Apr 18 16:32:40 EDT 2016

CROSSREFS

Cf. A264932 (with a(n-1)^^a(n-2)^ or a(n-2)1), A051285 (with ^a(n-2) = ^a(n-2).;

Cf. A051285 (with a(2) = 2).

STATUS

proposed

editing

Discussion

Mon Apr 18

16:35

Natan Arie' Consigli: Maybe, but no arbitrary large parameter is involved. It is almost like A264932 but a little more important.

#5 by Michael De Vlieger at Sun Apr 17 16:24:15 EDT 2016

STATUS

editing

proposed

Discussion

Mon Apr 18

10:24

Joerg Arndt: General advice: random definitions are just that, random.

#4 by Michael De Vlieger at Sun Apr 17 16:24:13 EDT 2016

MATHEMATICA

a[1] = 1; a[2] = 3; a[n_] := a[n] = a[n - 1]^a[n - 2]; Array[a, {6}] (* Michael De Vlieger, Apr 17 2016 *)

STATUS

proposed

editing

#3 by Natan Arie' Consigli at Sun Apr 17 14:02:00 EDT 2016

STATUS

editing

proposed

Discussion

Sun Apr 17

14:17

Michel Marcus: The sky's the limit ?

15:18

Natan Arie' Consigli: I don't know what you mean. I proposing the sequence because A264932  and A051285 are in the OEIS

#2 by Natan Arie' Consigli at Sun Apr 17 14:01:46 EDT 2016

NAME

allocated for Natan Arie' Consigli

a(1) = 1, a(2) = 3, a(n) = a(n-1)^a(n-2).

DATA

1, 3, 3, 27, 19683, 87189642485960958202911070585860771696964072404731750085525219437990967093723439943475549906831683116791055225665627

OFFSET

1,2

CROSSREFS

Cf.A264932 (with a(n-1)^a(n-2)^a(n-2)), A051285 (with a(2) = 2).

KEYWORD

allocated

nonn

AUTHOR

Natan Arie' Consigli, Apr 17 2016

STATUS

approved

editing