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A177822 Sub-triangle of A008292: terms with square indices. 0
1, 1, 1, 1, 4, 1, 11, 1, 26, 1, 1, 57, 57, 1, 120, 1191, 1, 247, 15619, 1, 502, 156190, 1, 1013, 1310354, 1, 1, 2036, 9738114, 2036 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

Row sums are {1, 2, 5, 12, 28, 115, 1312, 15867, 156693, 1311369, 9742187,...}.

LINKS

Table of n, a(n) for n=0..29.

EXAMPLE

{1},

{1, 1},

{1, 4},

{1, 11},

{1, 26, 1},

{1, 57, 57},

{1, 120, 1191},

{1, 247, 15619},

{1, 502, 156190},

{1, 1013, 1310354, 1},

{1, 2036, 9738114, 2036}

MATHEMATICA

<< DiscreteMath`Combinatorica`

a = Table[Table[Eulerian[n + 1, m^2], {m, 0, Floor[Sqrt[n]]}], {n, 0, 10}];

Flatten[%]

CROSSREFS

Cf. A008292,A003099

Sequence in context: A244608 A115022 A230534 * A091156 A092288 A111964

Adjacent sequences:  A177819 A177820 A177821 * A177823 A177824 A177825

KEYWORD

nonn,tabf

AUTHOR

Roger L. Bagula, Dec 13 2010

EXTENSIONS

Edited by N. J. A. Sloane, Jan 01 2011

STATUS

approved

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Last modified June 26 04:11 EDT 2019. Contains 324369 sequences. (Running on oeis4.)