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A269224 Factorial of the sum of digits of n in base 4. 1
1, 1, 2, 6, 1, 2, 6, 24, 2, 6, 24, 120, 6, 24, 120, 720, 1, 2, 6, 24, 2, 6, 24, 120, 6, 24, 120, 720, 24, 120, 720, 5040, 2, 6, 24, 120, 6, 24, 120, 720, 24, 120, 720, 5040, 120, 720, 5040, 40320, 6, 24, 120, 720, 24, 120, 720, 5040, 120, 720, 5040, 40320, 720, 5040, 40320 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

See sequences A093659, A269223 and A269221 for the base 2, base 3 and base 10 analog.

LINKS

Table of n, a(n) for n=0..62.

FORMULA

a(n) = A000142(A053737(n)).

MATHEMATICA

Table[Total[IntegerDigits[n, 4]]!, {n, 0, 62}] (* Michael De Vlieger, Mar 15 2016 *)

PROG

(PARI) A269224(n)=sumdigits(n, 4)! \\ sumdigits(., 4) requires version >= 2.7; see A053737 for a substitute.

(PARI) a(n) = vecsum(digits(n, 4))!; \\ Michel Marcus, Mar 15 2016

CROSSREFS

Cf. A000142, A053737, A166350, A093659, A269223, A269221.

Sequence in context: A302551 A078434 A021892 * A257240 A121601 A122761

Adjacent sequences:  A269221 A269222 A269223 * A269225 A269226 A269227

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, Mar 15 2016

STATUS

approved

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Last modified June 24 13:17 EDT 2019. Contains 324325 sequences. (Running on oeis4.)