A032904 Numbers whose base-7 representation Sum_{i=0..m} d(i)*7^i has d(0) <= d(1) >= d(2) <= ...

1, 2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 21, 22, 23, 24, 28, 29, 30, 31, 32, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 56, 57, 63, 64, 65, 70, 71, 72, 73, 77, 78, 79, 80, 81, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 112, 113, 114, 119, 120, 121, 122, 126, 127

Offset

1,2

Links

Table of n, a(n) for n=1..69.

Example

a(36)=63 since 63 = 49 + 7 + 7 is written 120 in base 7 and 0 <= 2 >= 1.

Crossrefs

Cf. A023763.

Cf. A032845, A032854, A032870, A032886, A032895, A032904.

Sequence in context: A032991 A032870 A023763 * A208530 A088416 A057913

Adjacent sequences: A032901 A032902 A032903 * A032905 A032906 A032907

Keyword

nonn,base

Author

Clark Kimberling

Extensions

Corrected by Henry Bottomley, Jul 03 2000

Status

approved