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A281335 a(n) is the smallest composite number having the same base-n digits (both type and quantity) as the primes and greater-than-one exponents in its factorization. 1
25, 16, 25, 2312, 16, 7136, 27, 72646, 25, 4617, 169, 384, 4119, 3875, 289, 182585, 128, 556875, 451, 49, 529, 1012985, 679, 72420352, 42752, 585903, 841, 64, 961, 118375, 1285, 2944, 179503, 4624625, 1369 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..36.

EXAMPLE

In base 2: The digits of 25 (11001) are the same type and quantity as the total of the prime 5 (101) and its exponent 2 (10) in 25's factorization; 2 zeros, 3 ones.

In base 26: The digits of 42752 (2,11,6,8) are the same type and quantity as the total of the prime 2 (2) and its exponent 8 (8) and the prime 167 (6,11) in 42752's factorization; 1 each of two, six, eight, eleven.

CROSSREFS

Cf. A273260, A281336.

Sequence in context: A241309 A093539 A040602 * A028937 A215537 A104790

Adjacent sequences:  A281332 A281333 A281334 * A281336 A281337 A281338

KEYWORD

nonn,base

AUTHOR

Hans Havermann, Jan 20 2017

STATUS

approved

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Last modified August 21 19:52 EDT 2017. Contains 290906 sequences.