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A027069 a(n) = diagonal sum of left-justified array T given by A027052. 0
1, 1, 1, 2, 2, 4, 5, 7, 11, 14, 22, 32, 43, 67, 97, 134, 206, 298, 419, 637, 923, 1312, 1978, 2872, 4111, 6161, 8961, 12888, 19232, 28010, 40423, 60129 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

CROSSREFS

Sequence in context: A098859 A195012 A034398 * A166515 A069906 A183564

Adjacent sequences:  A027066 A027067 A027068 * A027070 A027071 A027072

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 17 03:45 EST 2012. Contains 205978 sequences.