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A320145 Successive sums of the successive rows of the "diamond" mentioned in A320143. 1
1, 11, 61, 261, 1036, 3985, 15219, 58165, 222865, 856390, 3299847, 12746416, 49344192, 191395416, 743674848, 2894091631, 11278509462, 44009178795, 171924012903, 672337878973, 2631830166082, 10311300570030, 40431914384036, 158658644235797, 623028506525311, 2448135708410882, 9625587448387240, 37867431685796626, 149051247009095036, 586978615044109949, 2312665720315534896, 9115815083607895521 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..100

CROSSREFS

Sequence in context: A001847 A089764 A023298 * A106992 A115565 A137410

Adjacent sequences:  A320142 A320143 A320144 * A320146 A320147 A320148

KEYWORD

base,nonn

AUTHOR

Eric Angelini and Lars Blomberg, Oct 07 2018

STATUS

approved

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Last modified October 17 14:23 EDT 2019. Contains 328113 sequences. (Running on oeis4.)