A357999 a(n) is the number of times in the format hh:mm that can be represented in a 7-segment display by using only n segments (version A074458).

1, 0, 5, 12, 14, 41, 74, 87, 128, 185, 185, 162, 167, 159, 119, 67, 26, 7, 1

Offset

8,3

Comments

Since 8 <= A357973(n) <= 26 the sequence is finite and begins with offset 8.

Links

Table of n, a(n) for n=8..26.

Index entries for sequences related to calculator display

Mathematica

a055643[n_]:=FromDigits@ Apply[Join, PadLeft[#, 2] & /@ IntegerDigits@ IntegerDigits[n, 60]]; a074458[n_] := Plus @@ (IntegerDigits@ n /. {0 -> 6, 1 -> 2, 2 -> 5, 3 -> 5, 7 -> 4, 8 -> 7, 9 -> 5}); a[n_]:=a074458[a055643[n]]+6(4-Ceiling[Log10[a055643[n]+1]]); Table[Count[Join[{24}, Array[a, 1439]], n], {n, 8, 26}]

Crossrefs

Histogram of A357973.

Cf. A008588, A055642, A055643, A074458.

Variants: A357996, A357997, A357998, A358000.

Sequence in context: A360137 A185871 A037007 * A066025 A009824 A286276

Adjacent sequences: A357996 A357997 A357998 * A358000 A358001 A358002

Keyword

nonn,base,easy,fini,full

Author

Stefano Spezia, Oct 23 2022

Status

approved