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A094946 Zero-one triangle sequence. 1
1, 1011, 10110111, 1011011101111, 1011011101111011111, 10110111011110111110111111, 1011011101111011111011111101111111, 1011011101111011111011111101111111011111111 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Sum of n-th term digits is C(n+2,2).

FORMULA

a(n)=A094945((n+1)(n+2)/2+n)

CROSSREFS

Cf. A023532.

Sequence in context: A115769 A178396 A178349 * A158877 A159774 A072140

Adjacent sequences:  A094943 A094944 A094945 * A094947 A094948 A094949

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 25 2004

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Last modified February 17 05:54 EST 2012. Contains 205985 sequences.