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A257607 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = x + 5. 5
1, 5, 5, 25, 60, 25, 125, 535, 535, 125, 625, 4210, 7490, 4210, 625, 3125, 30885, 86110, 86110, 30885, 3125, 15625, 216560, 880735, 1377760, 880735, 216560, 15625, 78125, 1471235, 8330745, 18948695, 18948695, 8330745, 1471235, 78125, 390625, 9764910, 74498800, 234897010, 341076510, 234897010, 74498800, 9764910, 390625 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums are: 1, 10, 110, 1320, 17160, 240240, ... (see A049198).

LINKS

Table of n, a(n) for n=0..44.

EXAMPLE

1

5 5

25 60 25

125 535 535 125

625 4210 7490 4210 625

3125 30885 86110 86110 30885 3125

15625 216560 880735 1377760 880735 216560 15625

78125 1471235 8330745 18948695 18948695 8330745 1471235 78125

390625 9764910 74498800 234897010 341076510 234897010 74498800 9764910 390625

CROSSREFS

Cf. A008292, A256890, A257180, A257606

Cf. A257615, A257624

Similar sequences listed in A256890.

Sequence in context: A237654 A038247 A263798 * A093643 A223263 A189318

Adjacent sequences:  A257604 A257605 A257606 * A257608 A257609 A257610

KEYWORD

nonn,tabl

AUTHOR

Dale Gerdemann, May 03 2015

STATUS

approved

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Last modified April 1 01:02 EDT 2020. Contains 333152 sequences. (Running on oeis4.)