A228689 a(n) = A001676(4*n + 3).

1, 28, 992, 16256, 523264, 69524373504, 67100672, 7767211311104, 3014494287036416, 2303837503821447168, 341653284209033216, 798366828940770681028608, 11852230872517975212032, 91678339751618435453288448, 1986677733776616536315084668928, 284423744326342962334231917756416

Offset: 0

Author

N. J. A. Sloane, Aug 30 2013

Keywords

• nonn

Links

• V. P. Snaith, A history of the Arf-Kervaire invariant problem, Notices Amer. Math. Soc., 60 (No. 8, 2013), 1040-1047.

Crossrefs

Cf. A001676, A228690, A228691, A228692, A189995.

Extensions

Term a(15) corrected by Andrey Zabolotskiy, Nov 27 2022