The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A074458

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A074458

Number of segments lit to display the number n on a 7-segment display (as in pocket calculators): variant where '6', '7' and '9' use 6, 4 resp. 5 segments.
(history; published version)

#27 by N. J. A. Sloane at Sat Mar 09 11:06:43 EST 2024

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reviewed

approved

#26 by Stefano Spezia at Sat Mar 09 10:51:39 EST 2024

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proposed

reviewed

#25 by Jon E. Schoenfield at Sat Mar 09 10:50:08 EST 2024

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editing

proposed

#24 by Jon E. Schoenfield at Sat Mar 09 10:50:04 EST 2024

FORMULA

a(n) = a(n% mod 10) + a(floor(n/10)) for n > 9, where % is the remainder operator.

EXAMPLE

.

so we have a(0) = 6, a(1) = 2 and , a(2) = 5 ...

STATUS

approved

editing

#23 by Joerg Arndt at Tue Sep 01 06:25:34 EDT 2020

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proposed

approved

#22 by Kevin Ryde at Tue Sep 01 04:58:03 EDT 2020

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editing

proposed

#21 by Kevin Ryde at Tue Sep 01 04:57:50 EDT 2020

LINKS

<a href="/index/Ca#calculatordisplay">Index entries for sequences related to calculator display</a>

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approved

editing

#20 by Joerg Arndt at Tue Jun 23 05:49:41 EDT 2020

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reviewed

approved

#19 by Michel Marcus at Tue Jun 23 01:52:37 EDT 2020

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proposed

reviewed

#18 by M. F. Hasler at Tue Jun 23 01:46:40 EDT 2020

STATUS

editing

proposed