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 A178748 Total number of '1' bits in the terms of 'rows' of A178746 2
 1, 2, 7, 14, 37, 80, 187, 410, 913, 1988, 4327, 9326, 20029, 42776, 91027, 192962 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA G.f: 1/2*x^3-1/4+(x^4+x^3-3/4*x^2-1/2*x+1/4)*F(x) = 0 (from GUESSS) a(n) = (2^n *(3n+8)+(3n+1)*(-1)^n)/9 [From David Scambler, Jun 10 2010] EXAMPLE bitcount(1) = 1, bitcount(3) = 2, bitcount(6,6,7) = 7, CROSSREFS See also A178747 - sum of terms in rows of A178746 Contribution from David Scambler, Jun 10 2010: (Start) Sum of adjacent terms equals the difference of adjacent terms in A127981. a(n) + a(n-1) = A127981(n+1) - A127981(n) (End) Sequence in context: A191389 A191319 A018497 * A194590 A107373 A176662 Adjacent sequences:  A178745 A178746 A178747 * A178749 A178750 A178751 KEYWORD nonn AUTHOR David Scambler, Jun 09 2010 STATUS approved

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Last modified July 23 00:43 EDT 2019. Contains 325228 sequences. (Running on oeis4.)