The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A284812 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A284812

Numbers n such that n' = d_1^1 + d_2^2 + ... + d_k^k where d_1, d_2, ..., d_k are the digits of n, with MSD(n) = d_1 and LSD(n) = d_k, and n' is the arithmetic derivative of n.
(history; published version)

#14 by N. J. A. Sloane at Mon Apr 10 12:34:13 EDT 2017

STATUS

proposed

approved

#13 by Paolo P. Lava at Fri Apr 07 10:59:17 EDT 2017

STATUS

editing

proposed

#12 by Paolo P. Lava at Fri Apr 07 10:59:11 EDT 2017

DATA

4, 34, 78, 47863, 67277, 472621, 525038, 5576423, 7541551, 12485411, 13600033, 41777431, 48288701, 64979641, 97807441, 136272511, 153060223, 201916441, 214821521, 225015223

STATUS

reviewed

editing

#11 by Paolo P. Lava at Fri Apr 07 10:20:27 EDT 2017

STATUS

proposed

reviewed

#10 by Paolo P. Lava at Fri Apr 07 10:19:51 EDT 2017

STATUS

editing

proposed

#9 by Paolo P. Lava at Fri Apr 07 10:19:47 EDT 2017

DATA

4, 34, 78, 47863, 67277, 472621, 525038, 5576423, 7541551, 12485411, 13600033, 41777431, 48288701, 64979641, 97807441, 136272511, 153060223, 201916441, 214821521

STATUS

proposed

editing

#8 by Paolo P. Lava at Fri Apr 07 08:50:36 EDT 2017

STATUS

editing

proposed

#7 by Paolo P. Lava at Fri Apr 07 08:50:18 EDT 2017

DATA

4, 34, 78, 47863, 67277, 472621, 525038, 5576423, 7541551, 12485411, 13600033, 41777431, 48288701, 64979641, 97807441, 136272511, 153060223, 201916441

STATUS

proposed

editing

#6 by Paolo P. Lava at Fri Apr 07 05:13:56 EDT 2017

STATUS

editing

proposed

#5 by Paolo P. Lava at Fri Apr 07 05:13:14 EDT 2017

NAME

Numbers n such that n' = d_1^1 + d_2^2 + ... + d_k^k where d_1 , d_2 , ... , d_k is are the decimal expansion digits of n, where with MSD(n) = d_1 and LSD(n) = d_k, and n' is the arithmetic derivative of n.