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A134826
Row sums of triangle A134285, called s2(3)'.
3
1, 4, 14, 58, 214, 908, 3442, 14444, 56386, 234476, 920490, 3847998, 15165982, 62944212, 250787568, 1036586952, 4132605038, 17106500792, 68303652958, 281749732730, 1130378730046, 4648910236412, 18657451711020, 76808828008438
OFFSET
1,2
FORMULA
a(n) = Sum_{m=1..n} A134285(n,m), n>=1.
CROSSREFS
Cf. A134827 (alternating row sums of triangle A134285).
Sequence in context: A186828 A151489 A325929 * A096242 A360198 A296943
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Nov 13 2007
STATUS
approved