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A071156 Apart from the initial term (0), lists all integers whose factorial expansion ends with 1 (i.e., are odd numbers), do not contain a digit zero and each successive digit to the left is at most one greater than the preceding digit. 13
0, 1, 3, 5, 9, 11, 15, 17, 23, 33, 35, 39, 41, 47, 57, 59, 63, 65, 71, 87, 89, 95, 119, 153, 155, 159, 161, 167, 177, 179, 183, 185, 191, 207, 209, 215, 239, 273, 275, 279, 281, 287, 297, 299, 303, 305, 311, 327, 329, 335, 359, 417, 419, 423, 425, 431, 447, 449 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
a(n) = A085198(A014486(n)) = A071155(A057164(n)). Catalan numbers A000108(n) gives the number of terms whose factorial expansion contain n digits.
0 is included by considering it to have the empty string as its factorial base representation. - Franklin T. Adams-Watters, Jun 28 2006
LINKS
CROSSREFS
The beginning of this sequence expanded in the factorial number system: A071158. Inverse function: A085199. First differences: A085191.
Cf. A000108 (row lengths), A071155, A120696.
Sequence in context: A268732 A101114 A120696 * A274212 A076610 A069205
KEYWORD
base,nonn,tabf
AUTHOR
Antti Karttunen, May 14 2002
STATUS
approved

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)