A010344 - OEIS

A010344

Base-4 Armstrong or narcissistic numbers (written in base 10).

1, 2, 3, 28, 29, 35, 43, 55, 62, 83, 243

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Narcissistic Number

PROG

(PARI) A010344=select( n->n==vecsum([d^#n|d<-n=digits(n, 4)]), [0..333]) \\ M. F. Hasler, Nov 18 2019

CROSSREFS

Cf. A010343 (a(n) written in base 4).

In other bases: A010346 (base 5), A010348 (base 6), A010350 (base 7), A010354 (base 8), A010353 (base 9), A005188 (base 10), A161948 (base 11), A161949 (base 12), A161950 (base 13), A161951 (base 14), A161952 (base 15), A161953 (base 16).

KEYWORD

base,fini,full,nonn

AUTHOR

EXTENSIONS

Edited by Joseph Myers, Jun 28 2009

STATUS

approved