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A269223 Factorial of the sum of digits of n in base 3. 2
1, 1, 2, 1, 2, 6, 2, 6, 24, 1, 2, 6, 2, 6, 24, 6, 24, 120, 2, 6, 24, 6, 24, 120, 24, 120, 720, 1, 2, 6, 2, 6, 24, 6, 24, 120, 2, 6, 24, 6, 24, 120, 24, 120, 720, 6, 24, 120, 24, 120, 720, 120, 720, 5040, 2, 6, 24, 6, 24, 120, 24, 120, 720, 6, 24, 120, 24, 120, 720, 120, 720 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Sequence A093659 is the binary (base 2) and sequence A269221 is the decimal (base 10) version.

LINKS

Table of n, a(n) for n=0..70.

FORMULA

a(n) = A000142(A053735(n)).

MATHEMATICA

Table[Total[IntegerDigits[n, 3]]!, {n, 0, 70}] (* Michael De Vlieger, Mar 15 2016 *)

PROG

(PARI) A269223(n)=sumdigits(n, 3)! \\ sumdigits(., 3) requires version > 2.7.1; see A053735 for a substitute.

(PARI) a(n) = vecsum(digits(n, 3))!; \\ Michel Marcus, Mar 15 2016

CROSSREFS

Cf. A000142, A053735, A166350, A093659.

Sequence in context: A053448 A060550 A099206 * A121341 A241737 A174959

Adjacent sequences:  A269220 A269221 A269222 * A269224 A269225 A269226

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, Mar 15 2016

STATUS

approved

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Last modified October 19 13:01 EDT 2019. Contains 328222 sequences. (Running on oeis4.)