A366962 Numbers whose difference between the largest and smallest digits is equal to 5.

16, 27, 38, 49, 50, 61, 72, 83, 94, 105, 116, 126, 136, 146, 150, 156, 161, 162, 163, 164, 165, 166, 205, 216, 227, 237, 247, 250, 257, 261, 267, 272, 273, 274, 275, 276, 277, 305, 316, 327, 338, 348, 350, 358, 361, 368, 372, 378, 383, 384, 385, 386, 387, 388

Offset

1,1

Comments

The number of n-digit terms of this sequence is 29*6^(n-1) - 49*5^(n-1) + 5*4^n.

Links

Table of n, a(n) for n=1..54.

Mathematica

Select[Range[400], Max[d=IntegerDigits[#]]-Min[d]==5 &]

Prog

(Python)
def ok(n): return max(d:=list(map(int, str(n))))-min(d) == 5
print([k for k in range(400) if ok(k)]) # Michael S. Branicky, Oct 30 2023
(PARI) isok(n) = my(d=digits(n)); vecmax(d) - vecmin(d) == 5; \\ Michel Marcus, Nov 05 2023

Crossrefs

Cf. A037904.

Cf. A010785 (difference = 0), A366958 (difference = 1), A366959 (difference = 2), A366960 (difference = 3), A366961 (difference = 4), A366963 (difference = 6), A366964 (difference = 7), A366965 (difference = 8), A366966 (difference = 9).

Sequence in context: A199013 A118642 A088247 * A032610 A286429 A329206

Adjacent sequences: A366959 A366960 A366961 * A366963 A366964 A366965

Keyword

nonn,base,easy

Author

Stefano Spezia, Oct 30 2023

Status

approved