The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A367623

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A367623

Number of comma-children of n in base 3.
(history; published version)

#10 by OEIS Server at Sun Dec 24 11:48:10 EST 2023

LINKS

Michael S. Branicky, <a href="/A367623/b367623_1.txt">Table of n, a(n) for n = 1..10000</a>

#9 by N. J. A. Sloane at Sun Dec 24 11:48:10 EST 2023

STATUS

proposed

approved

Discussion

Sun Dec 24

11:48

OEIS Server: Installed first b-file as b367623.txt.

#8 by Michael S. Branicky at Sat Dec 23 22:54:51 EST 2023

STATUS

editing

proposed

#7 by Michael S. Branicky at Sat Dec 23 22:54:48 EST 2023

COMMENTS

Needs a b-file

LINKS

Michael S. Branicky, <a href="/A367623/b367623_1.txt">Table of n, a(n) for n = 1..10000</a>

PROG

(Python)

from sympy.ntheory.factor_ import digits

def a(k, base=3):

m = k + base*(k%base)

return len([m+y for y in range(1, base) if digits(m+y, base)[1] == y])

print([a(n) for n in range(1, 96)]) # Michael S. Branicky, Dec 23 2023

STATUS

proposed

editing

#6 by N. J. A. Sloane at Sat Dec 23 22:06:47 EST 2023

STATUS

editing

proposed

#5 by N. J. A. Sloane at Sat Dec 23 22:06:43 EST 2023

DATA

2, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

COMMENTS

Needs a b-file

CROSSREFS

Cf. A121805, A367338 (definition), A367341 (0's), A367346 (2's), A367622.

Cf. A121805, A367355, A367356, A367606-A367609, A367622.

STATUS

proposed

editing

#4 by N. J. A. Sloane at Sat Dec 23 22:02:48 EST 2023

STATUS

editing

proposed

#3 by N. J. A. Sloane at Sat Dec 23 22:02:42 EST 2023

NAME

qqqq3

Number of comma-children of n in base 3.

CROSSREFS

Cf. A121805, A367338 (definition), A367341 (0's), A367346 (2's), A367622.

KEYWORD

nonn,changedbase,new

#2 by N. J. A. Sloane at Sat Dec 23 22:01:33 EST 2023

NAME

allocated for N. J. A. Sloane

qqqq3

DATA

OFFSET

1,1

KEYWORD

allocated

nonn

AUTHOR

N. J. A. Sloane, Dec 23 2023

STATUS

approved

editing

#1 by N. J. A. Sloane at Fri Nov 24 18:02:14 EST 2023

NAME

allocated for N. J. A. Sloane

KEYWORD

allocated

STATUS

approved