A088670 - OEIS

A088670

Number of partitions of n into distinct decimal repdigit numbers.

1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9, 11, 13, 14, 17, 19, 21, 23, 26, 27, 30, 32, 34, 36, 37, 39, 40, 42, 42, 44, 44, 45, 45, 47, 47, 47, 49, 48, 50, 50, 52, 52, 55, 55, 58, 60, 60, 64, 65, 68, 69, 73, 73, 77, 78, 82, 84, 84, 88, 88, 92, 92, 96, 96, 100, 100, 105, 107, 107, 113

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

COMMENTS

a(n) <= A000009(n).

Not the same as A091581: a(n) < A091581(n) for n > 101.

A109967(n) = a(n+1) - a(n). - Reinhard Zumkeller, Jul 06 2005

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..20000 (first 1001 terms from Reinhard Zumkeller)

Eric Weisstein's World of Mathematics, Repdigit

Eric Weisstein's World of Mathematics, Partition

PROG

(Haskell)

a088670 = p $ tail a010785_list where

p _ 0 = 1

p (k:ks) m = if m < k then 0 else p ks (m - k) + p ks m

-- Reinhard Zumkeller, Dec 10 2011

CROSSREFS

Cf. A010785, A088669, A109968, A131364.

Sequence in context: A056822 A062419 A061052 * A091581 A014591 A286745

Adjacent sequences: A088667 A088668 A088669 * A088671 A088672 A088673

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Oct 03 2003

EXTENSIONS

a(0)=1 added and offset adjusted by Reinhard Zumkeller, Dec 10 2011

STATUS

approved

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