A036892 - OEIS

A036892

Number of partitions of 5n such that cn(1,5) = cn(4,5) < cn(0,5) = cn(2,5) = cn(3,5).

0, 1, 3, 7, 14, 30, 62, 133, 275, 562, 1109, 2145, 4035, 7457, 13509, 24115, 42405, 73667, 126420, 214681, 360778, 600625, 990756, 1620449, 2628504, 4230770, 6758916, 10721739, 16892541, 26443435, 41137558, 63618639, 97825383, 149605621, 227593695

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OFFSET

1,3

COMMENTS

Alternatively, number of partitions of 5n such that cn(2,5) = cn(3,5) < cn(0,5) = cn(1,5) = cn(4,5).

For a given partition, cn(i,n) means the number of its parts equal to i modulo n.

LINKS

Table of n, a(n) for n=1..35.

Index and properties of sequences related to partitions of 5n

FORMULA

a(n) = A036891(n) - A036895(n)

a(n) = A036890(n) - A036894(n)

a(n) = A036889(n) - A046776(n)

CROSSREFS

Sequence in context: A305777 A139817 A173010 * A123707 A011947 A129629

Adjacent sequences: A036889 A036890 A036891 * A036893 A036894 A036895

KEYWORD

nonn

AUTHOR

Olivier Gérard

EXTENSIONS

Terms a(10) onward from Max Alekseyev, Dec 11 2011

STATUS

approved