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 A211208 Sums of squares of terms in rows of Losanitsch's triangle (A034851). 2
 1, 2, 3, 10, 26, 92, 282, 1044, 3558, 13436, 48578, 185516, 693332, 2667160, 10156772, 39277160, 151224134, 587138284, 2275980402, 8864583324, 34516282476, 134779569352, 526441907852, 2060002196632, 8065098605532, 31615272898392, 124004228696052 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Limit a(n+1)/a(n) = 4. LINKS Paul D. Hanna, Table of n, a(n) for n = 0..1000 FORMULA a(n) = Sum_{k=0..n} A034851(n,k)^2. PROG (PARI) {a(n)=sum(k=0, n, (binomial(n, k) + binomial(n%2, k%2) * binomial(n\2, k\2))^2/4)} for(n=0, 30, print1(a(n), ", ")) CROSSREFS Cf. A034851. Sequence in context: A005158 A182926 A005225 * A303836 A238937 A278088 Adjacent sequences:  A211205 A211206 A211207 * A211209 A211210 A211211 KEYWORD nonn AUTHOR Paul D. Hanna, Feb 04 2013 STATUS approved

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Last modified October 23 15:13 EDT 2018. Contains 316528 sequences. (Running on oeis4.)